| File extension | Developer/Producer | File description |
|---|---|---|
| P file extension | N/A | Pascal Language Source Code Format |
| P00 file extension | N/A | C64 Emulator |
| P01 file extension | N/A | GEAR Image Format |
| P02 file extension | Peter B. Clements | PAR Recovery Volume |
| P03 file extension | Peter B. Clements | PAR Recovery Volume |
| P04 file extension | Peter B. Clements | PAR Recovery Volume |
| P05 file extension | Peter B. Clements | PAR Recovery Volume |
| P06 file extension | SourceForge.net | Parity Archive Volume Set |
| P07 file extension | Peter B. Clements | PAR Recovery Volume |
| P08 file extension | Peter B. Clements | PAR Recovery Volume |
| P09 file extension | Peter B. Clements | PAR Recovery Volume |
| P10 file extension | N/A | Certificate Request Format |
| P11 file extension | Peter B. Clements | PAR Recovery Volume |
| P12 file extension | N/A | PFX File (Personal Information Exchange) |
| P14 file extension | Peter B. Clements | PAR Recovery Volume |
| P15 file extension | Peter B. Clements | PAR Recovery Volume |
| P17 file extension | Peter B. Clements | PAR Recovery Volume |
| P19 file extension | Peter B. Clements | PAR Recovery Volume |
| P1I file extension | IBM | IBM Voice Type Languages Newuser |
| P2 file extension | Panasonic Corporation | Panasonic P2 Video |
| P20 file extension | Peter B. Clements | PAR Recovery Volume |
| P21 file extension | N/A | Express STEP Data Model Format |
| P23 file extension | Peter B. Clements | PAR Recovery Volume |
| P24 file extension | Peter B. Clements | PAR Recovery Volume |
| P25 file extension | Peter B. Clements | PAR Recovery Volume |
| P26 file extension | Peter B. Clements | PAR Recovery Volume |
| P28 file extension | Peter B. Clements | PAR Recovery Volume |
| P29 file extension | Peter B. Clements | PAR Recovery Volume |
| P2A file extension | IBM | IBM Voice Type Languages Vocables |
| P2BP file extension | Mediaparts Interactive | FlippingBook Publisher Book Project |
| P2C file extension | IBM | IBM Voice Type Languages Newuser |
| P2D file extension | Point Line CAD AG | PointLineCAD 2D Drawing |
| P2F file extension | WAMIT, Inc. | Wamit |
| P2G file extension | CyberLink | CyberLink Power2Go Project Format |
| P2I file extension | CyberLink | Power2Go Image Format |
| P2KC file extension | PK2Tools | P2KTools Mod |
| P2M file extension | Dassault Systemes | PhotoWorks Appearance Format |
| P2P file extension | Microsoft | Microsoft FolderShare Format |
| P2S file extension | PCSX2 | PCSX2 Saved State |
| P2V file extension | 3d-in-berlin.de | PLAN2VIZ Backup Design Plan |
| P2Z file extension | Smith Micro | Poser Compressed Pose Format |
| P3 file extension | Oracle | Oracle Primavera Project Planner Format |
| P30 file extension | Peter B. Clements | PAR Recovery Volume |
| P3C file extension | IBM | IBM Voice Type Languages Newuser |
| P3D file extension | PeakWork | PointLineCAD 3D Drawing Format |
| P3E file extension | Adobe Systems | Photoshop Repousse Settings Format |
| P3I file extension | Tech4Learning, Inc. | Pixie |
| P3L file extension | Adobe Systems | Adobe Photoshop Light Preset Format |
| P3M file extension | Adobe Systems | Adobe Photoshop Material Preset Format |
| P3R file extension | Adobe Systems | Adobe Photoshop Render Settings Preset Format |
| P3T file extension | Sony | Sony Playstation 3 Theme Format |
| P3X file extension | N/A | Document |
| P4F file extension | Webzen | MU Online [P4F] Launcher System Data |
| P5X file extension | Microsoft Corporation | Windows System |
| P6 file extension | N/A | Perl 6 Source Code Format |
| P64 file extension | N/A | Picasso 64 Image Format |
| P65 file extension | Adobe Systems | Adobe PageMaker Document Format |
| P7 file extension | N/A | PKCS #7 Digital Certificate Format |
| P7B file extension | N/A | PKCS #7 Certificates Format |
| P7C file extension | N/A | PKCS #7 Certificate Format |
| P7E file extension | N/A | SecureSoft Encrypted |
| P7M file extension | N/A | Digitally Encrypted Message |
| P7R file extension | N/A | Response To A Security Certificate Request Format |
| P7S file extension | N/A | PKCS #7 Signature Format |
| P7X file extension | Microsoft Corporation | Application Digital Certificate |
| P7Z file extension | N/A | S/MIME Compressed Message |
| P96 file extension | N/A | Win96 Database Format |
| P97 file extension | N/A | Win97 Database Format |
| PA file extension | Nova Development | Print Artist Project Format |
| PA2M file extension | Richard Hughey - Kevin Karplus - Anders Krogh | SAM Alignment |
| PA3 file extension | Embarcadero Technologies, Inc. | Turbo Pascal DOS |
| PA4 file extension | Embarcadero Technologies, Inc. | Turbo Pascal Dos |
| PA5 file extension | N/A | Turbo Pascal Dos |
| PAA file extension | The Church of Jesus Christ of Latter-day Saints | PAF Personal Ancestral File Data |
| PAAL file extension | Cakewalk, Inc. | Pyro Audio Creator Audio Layout |
| PAB file extension | Microsoft | Microsoft Outlook Personal Address Book Format |
| PAC file extension | Netscape | Proxy Automatic Configuration Format |
| PACK file extension | Oracle | Pack200 Packed Jar Format |
| PACKGZ file extension | Oracle | Pack200 Compressed Archive Format |
| PACKAGE file extension | Electronic Arts | Electronic Arts Game Data Archive Format |
| PAD file extension | The Sage Group | ACT! Database Pointer Format |
| PAE file extension | N/A | PowerArchiver Encrypted Archive Format |
| PAF file extension | N/A | PortableApps Portable Application Install Package |
| PAFEXE file extension | The PortableApps.com Project | PortableApps.com Program Format |
| PAF2 file extension | Texas Instruments Inc. | Code Composer Studio Compiled |
| PAG file extension | LMSoft | Lmsoft Hypermedia Page |
| PAGE file extension | HybridServerPages Group | HybridJava Web Page Format |
| PAGES file extension | Apple | IWork Pages Document Format |
| PAGES-TEF file extension | Apple | Apple Pages ICloud Document Format |
| PAINT file extension | N/A | Apple Macintosh MacPaint Bitmap |
| PAK file extension | N/A | Game Resource Package Format |
| PAKM file extension | Janki Software | PAKM Package Format |
| PAL file extension | N/A | Dr. Halo Color Palette Format |
| PALM file extension | N/A | Palm Pixmap |
| PAM file extension | N/A | Portable Arbitrary Map |
| PAMP file extension | Poweramp | PowerAMP Album Art Format |
| PAN file extension | N/A | The Panorama Factory Project Format |
| PANDO file extension | N/A | Pando Package Format |
| PANDORA file extension | N/A | Pandora Private Multimedia Format |
| PANIC file extension | N/A | Kernel Panic Format |
| PANL file extension | Freescale Semiconductor, Inc. | CodeWarrior Preference Panel |
| PANO file extension | Apple, Inc. | Apple Quicktime VR Panorama |
| PAO file extension | Xilinx, Inc. | Xilinx Source List |
| PAP file extension | PanoramaStudio | PanoramaStudio Project Format |
| PAPERS file extension | Corel | Corel Painter Paper Texture Format |
| PAQ file extension | Hewlett-Packard | Hewlett-Packard System Backup ZIP Format |
| PAQ6 file extension | N/A | PAQ6 Data Archive Format |
| PAQ7 file extension | N/A | PAQ7 Data Archive Format |
| PAQ8 file extension | PAQ | PAQ8 Data Archive Format |
| PAQ8F file extension | N/A | PAQ Data Archive Format |
| PAQ8JD file extension | N/A | PAQ Data Archive |
| PAQ8L file extension | N/A | PAQ Data Archive |
| PAQ8O file extension | N/A | PAQ Data Archive |
| PAR file extension | Parchive | Parchive Index Format |
| PAR2 file extension | Parchive | PAR2 Recovery Volume Format |
| PAR3 file extension | SourceForge.net | PAR3 Recovery Volume |
| PARAM file extension | Castep team | CASTEP Scripts |
| PARM file extension | SAS Institute Inc. | SAS Scalable Performance Data Server LIBNAME |
| PART file extension | N/A | Partial Download Format |
| PART00000 file extension | Ashampoo | Ashampoo WinOptimizer Split Archive File (part 1) |
| PART1 file extension | NetObjects Inc. | NetObjects Fusion System |
| PART1EXE file extension | Eugene Roshal | Split Multi-volume RAR Compressed Self-extracting File Archive (part 1) |
| PART1RAR file extension | Eugene Roshal | Split Multi-volume RAR Compressed File Archive (part 1) |
| PART10RAR file extension | Eugene Roshal | Split Multi-volume RAR Compressed File Archive (part 10) |
| PART11RAR file extension | Eugene Roshal | Split Multi-volume RAR Compressed File Archive (part 11) |
| PART2 file extension | NetObjects Inc. | NetObjects Fusion System |
| PART2RAR file extension | Eugene Roshal | Split Multi-volume RAR Compressed File Archive (part 2) |
| PART3 file extension | NetObjects Inc. | NetObjects Fusion System |
| PART3RAR file extension | Eugene Roshal | Split Multi-volume RAR Compressed File Archive (part 3) |
| PART4 file extension | NetObjects Inc. | NetObjects Fusion System |
| PART4RAR file extension | Eugene Roshal | Split Multi-volume RAR Compressed File Archive (part 4) |
| PART5 file extension | NetObjects Inc. | NetObjects Fusion System |
| PART5RAR file extension | Eugene Roshal | Split Multi-volume RAR Compressed File Archive (part 5) |
| PART6RAR file extension | Eugene Roshal | Split Multi-volume RAR Compressed File Archive (part 6) |
| PART7RAR file extension | Eugene Roshal | Split Multi-volume RAR Compressed File Archive (part 7) |
| PART8RAR file extension | Eugene Roshal | Split Multi-volume RAR Compressed File Archive (part 8) |
| PART9RAR file extension | Eugene Roshal | Split Multi-volume RAR Compressed File Archive (part 9) |
| PARTIAL file extension | Microsoft | Microsoft Internet Explorer 9 Partial Download Format |
| PARTIMG file extension | N/A | Partimage Disk Image Format |
| PARTIMGBZ2 file extension | Various Linux developers | Partimage Disk Image |
| PARTIMGGZ file extension | Various Linux developers | Partimage Disk Image |
| PAS file extension | N/A | Delphi Unit Source Format |
| PASSWORDWALLET4 file extension | Selznick Scientific Software | PasswordWallet Encrypted Data Format |
| PAT file extension | N/A | AutoCAD Hatch Pattern Format |
| PAT0 file extension | N/A | Nintendo Wii Texture Pattern |
| PATCH file extension | N/A | Patch |
| PATTERN file extension | Impressum | PhotoLine 5 Default |
| PAUX file extension | N/A | PlasTeX |
| PAV file extension | Panda Security | Panda Antivirus |
| PAW file extension | Pawaa Software | PawaaFILE File Format |
| PAX file extension | POSIX | PAX Archive Format |
| PAYLOAD file extension | Microsoft Corporation | Microsoft Windows Mobile |
| PB file extension | Fantaisie | PureBasic Source Code |
| PB1 file extension | Brøderbund Software, Inc. | Broderbund 3D Home Architect |
| PBA file extension | Oracle | OpenOffice.org Basic Protected Module Format |
| PBB file extension | AT&T | Mobile Phonebook Format |
| PBC file extension | Parrot Foundation | Parrot Compiled Byte Code |
| PBD file extension | AEC Logic Private Limited | ProBID+ Data Format |
| PBE file extension | Crownhill Associates Limited | Proton Plus Compiler |
| PBF file extension | Paragon Software Group | Paragon Disk Image Format |
| PBG file extension | Adobe Systems | Adobe Pixel Bender Graph Language Format |
| PBH file extension | PowerBASIC, Inc. | PowerBasic Help |
| PBI file extension | N/A | PC-BSD Setup Format |
| PBJ file extension | Adobe Systems | Pixel Bender Kernel Byte-code Format |
| PBK file extension | Microsoft | Microsoft Dial-Up Phonebook Format |
| PBL file extension | PowerBASIC, Inc. | PowerBASIC Library |
| PBM file extension | N/A | Portable Bitmap Format |
| PBMV file extension | N/A | Portable Bitmap |
| PBN file extension | N/A | Portable Bridge Notation Format |
| PBO file extension | Bohemia Interactive | Packed Bohemia Object |
| PBP file extension | Sony | Sony PlayStation Portable Firmware Image |
| PBPROJ file extension | N/A | Project Builder Project |
| PBQ file extension | Even Balance, Inc. | PunkBuster Query Script |
| PBR file extension | Sybase Inc. | PowerBuilder Resource |
| PBS file extension | Corel Corporation | Corel PaintShop Photo Pro Brush Stroke Presets |
| PBT file extension | N/A | Micro Dynamics MARS Image Format |
| PBU file extension | PowerBASIC, Inc. | PowerBASIC Unit |
| PBV file extension | Corel Corporation | Corel PaintShop Photo Pro Bevel Preset |
| PBW file extension | Photobucket | Photobucket Slideshow |
| PBX file extension | Microsoft Corporation | Outlook Express Message Folder |
| PBX5SCRIPT file extension | Intego | Personal Backup Script Format |
| PBXBTREE file extension | Apple | Apple Xcode Auto-complete Format |
| PBXPROJ file extension | Apple | Apple Project Builder Xcode Project File Format |
| PBXSCRIPT file extension | Intego | Personal Backup Script Format |
| PBXUSER file extension | Apple | Xcode Project User Data Format |
| PBZ file extension | Google Inc. | Google Picasa Button Zip |
| PC file extension | Personal Composer | Personal Composer Musical Notation Format |
| PC1 file extension | Degas | Atari Degas Image |
| PC2 file extension | Degas | Atari Degas Image |
| PC3 file extension | Autodesk | Autodesk AutoCAD R2000 Plotter Configuration Format |
| PC5 file extension | Rockwell Automation, Inc. | Rockwell Software Logix 5 Format |
| PC6 file extension | Engineered Software | PowerCADD 6 Drawing Format |
| PC7 file extension | Engineered Software | PowerCADD 7 Drawing Format |
| PCA file extension | N/A | Sonic Foundry Perfect Clarity Audio Format |
| PCAP file extension | N/A | Packet Capture Data Format |
| PCAPNG file extension | N/A | PCAP Next Generation Dump Format |
| PCAST file extension | Apple | Apple ITunes Podcast URL Format |
| PCB file extension | N/A | Printed Circuit Board Format |
| PCBDOC file extension | N/A | Printed Circuit Board Description |
| PCC file extension | Electronic Arts | Mass Effect Package Format |
| PCD file extension | Kodak | Kodak Picture CD Multiresolution Image |
| PCDS file extension | N/A | Multi-resolution Bitmap Graphics - Kodak Photo-CD Format |
| PCE file extension | N/A | TurboGrafx-16 ROM |
| PCF file extension | PaintCAD | PaintCAD Font Format |
| PCG file extension | Korg | Korg Triton Bank Format |
| PCH file extension | N/A | Microsoft Visual Studio Visual C++ Precompiled Header |
| PCHD file extension | PCDiskTools.com | PC Backup Utilities Backup |
| PCI file extension | Microsoft Corporation | PCI Miniport |
| PCJ file extension | IBM | IBM LinkWay Graphics |
| PCK file extension | Microsoft | Program Package Format |
| PCL file extension | HP | HP Vector Graphics Format |
| PCM file extension | N/A | PCM Audio Format |
| PCMI file extension | ABB Group | ABB PCM600 Pre-configured IED |
| PCMP file extension | ABB Group | ABB PCM600 Project |
| PCMT file extension | ABB Group | ABB PCM600 Template IED |
| PCN file extension | Corel Corporation | Corel PaintShop Photo Pro Contour Preset |
| PCP file extension | Microsoft | Windows Installer Patch Creation Process Format |
| PCQ file extension | N/A | Pfaff Embroidery |
| PCR file extension | FutureMark | PCMark Benchmark Format |
| PCS file extension | Pfaff | Pfaff Home Embroidery Format |
| PCSAV file extension | Electronic Arts | Mass Effect Saved Game Format |
| PCSXSTATE file extension | PCSX | PCSX Emulator Saved Game Format |
| PCT file extension | Apple | Picture Format |
| PCTL file extension | Kaspersky Lab | Kaspersky Parental Control Settings Format |
| PCU file extension | PC MightyMax | PC MightyMax Undo |
| PCV file extension | Mozilla | MozBackup Backup Format |
| PCX file extension | ZSoft | Paintbrush Bitmap Image |
| PCXM file extension | Microsoft Corporation | SQL Server Encrypted Forms Backup |
| PD file extension | SA International | FlexiSIGN 5 Plotter Document Format |
| PD2 file extension | Jan van Wijk | DFSee Partition Table And Boot Sector Backup |
| PD3 file extension | Autodesk, Inc. | 3D Studio Max |
| PD4 file extension | Microsoft | Windows Photo Gallery User Format |
| PD5 file extension | Microsoft | Windows Live Photo Gallery Information Format |
| PD6 file extension | Intuit Inc. | Lacerte Tax |
| PDA file extension | Brøderbund Software, Inc. | Image Print Shop Deluxe |
| PDAS file extension | hfrmobile | PDAStore Store Flie |
| PDB file extension | N/A | Microsoft Visual Studio Visual C++ Program Database Format |
| PDBX file extension | SunGard | Martini Personal Database |
| PDC file extension | LockLizard | Lizard Safeguard Secure PDF Format |
| PDD file extension | Adobe Systems | Adobe PhotoDeluxe Document Format |
| PDE file extension | Processing | Processing Development Environment Source Code Format |
| PDER file extension | Step Function | ProntoDoc For Excel Conventional Document |
| PDF file extension | Adobe Systems | Adobe Portable Document Format |
| PDFA file extension | Adobe Systems Incorporated | PDF/A Document |
| PDFE file extension | Adobe Systems Incorporated | PDF/E Document |
| PDFENX file extension | Egis Technology Inc. | Egis Encrypted PDF |
| PDFIG file extension | PDF Colony Software | PDF Index Generator Project Format |
| PDFS file extension | Adobe Systems | Adobe Illustrator Format |
| PDFUA file extension | Adobe Systems Incorporated | PDF/UA Document |
| PDFVT file extension | Adobe Systems Incorporated | PDF/VT Document |
| PDFX file extension | Adobe Systems Incorporated | PDF/X Document |
| PDFXML file extension | Adobe Systems | Adobe Mars Project XML Based PDF Document Format |
| PDF_ file extension | Adobe Systems Incorporated | Adobe Acrobat Portable Document |
| PDF_TSID file extension | N/A | Adobe PDF Document |
| PDG file extension | Broderbund | Broderbund Print Shop Deluxe Data |
| PDH file extension | Step Function | ProntoDoc For Word Browser Display Document Template |
| PDI file extension | N/A | Instant Copy Disk Image Format |
| PDK file extension | Tekblues Ltd. | PC Desktop Cleaner Configuration |
| PDL file extension | The PDL Team | Perl Data Language Format |
| PDM file extension | Microsoft | Microsoft Visual Basic Project Information Format |
| PDML file extension | N/A | Packet Details Markup Language |
| PDN file extension | Rick Brewster | Paint.NET Image Format |
| PDO file extension | Tama Software | Pepakura Designer Paper Craft Model Design Format |
| PDOC file extension | Richard Hughey - Kevin Karplus - Anders Krogh | Grabdp |
| PDP file extension | Adobe Systems | Adobe Portable Document Format |
| PDQ file extension | Patton&Patton | Flow Charting PDQ |
| PDR file extension | N/A | Windows Port Device Driver Format |
| PDS file extension | CyberLink | Cyberlink PowerDirector Project Format |
| PDT file extension | Thomson Reuters | ProCite Database |
| PDU file extension | N/A | Protocol Data Unit Message |
| PDV file extension | Kitware, Inc. | Visualization Toolkit Graphic |
| PDVR file extension | Apple, Inc. | QuickDraw GX |
| PDW file extension | Step Function | ProntoDoc For Word Conventional Document Template |
| PDWR file extension | Step Function | ProntoDoc For Word Conventional Document |
| PDX file extension | Adobe Systems | Adobe Acrobat Index Format |
| PDXA file extension | Paradox Interactive | Europa Universalis III |
| PDZ file extension | Step Function | ProntoDoc For Word Structured Text Document Template |
| PE file extension | Inventorprise | PatentEase |
| PE3 file extension | Ulead Systems | Ulead PhotoImpact Image Archive |
| PE4 file extension | Ulead | Ulead Image Archive |
| PEA file extension | PeaZip | PeaZip Pack Encrypt Authenticate Format |
| PEAK file extension | Steinberg | Steinberg Cubase Peak Format |
| PEB file extension | AEC Logic Private Limited | ProEST+ Buildings Format |
| PEC file extension | Brother International Corporation | Brother Embroidery File Format |
| PED file extension | Corel Corporation | Corel WordPerfect Program Editor Delete Save |
| PEE file extension | The Sage Group plc | Sage Timberline Estimating |
| PEF file extension | Pentax | Pentax Digital Camera Raw Image Format |
| PEG file extension | PopCap Games | Peggle Game Replay Format |
| PEGN file extension | PopCap Games | Peggle Nights Replay Format |
| PEK file extension | Adobe Systems | Adobe Premiere Graphic Waveform Format |
| PEKEY file extension | N/A | PhysicsEditor Key |
| PEL file extension | IBM | IBM Forms Log |
| PEM file extension | N/A | Privacy Enhanced Mail Security Certificate Format |
| PEN file extension | Corel | Corel PaintShop Photo Pro Enamel Presets Format |
| PEP file extension | Office Work Software | TurboProject Project Format |
| PEQ file extension | Corel Corporation | Corel WordPerfect Program Editor Print Queue |
| PER file extension | Microsoft | Age Of Empires Personality Format |
| PERFMONCFG file extension | Microsoft | Microsoft Windows Performance Monitor Configuration Format |
| PERL file extension | The Software Group | Perl Source |
| PERSPECTIVE file extension | Apple, Inc. | Xcode Project Related |
| PERSPECTIVEV3 file extension | Apple, Inc. | Xcode Project Related |
| PES file extension | N/A | Brother Embroidery File Format |
| PET file extension | Barry Kauler | Puppy Linux Install Package Format |
| PEX file extension | Merak | Merak Peep Data Format |
| PEZ file extension | Prezi | Prezi Desktop Transfer Format |
| PF file extension | Smith Micro | Aladdin Systems Private Format |
| PF0 file extension | SmartWare Corporation | SmartWare Project Source Code |
| PF1 file extension | SmartWare Corporation | SmartWare Project Source Code |
| PF2 file extension | Canon Inc. | Canon Picture Style Editor Picture Style |
| PF3 file extension | SmartWare Corporation | SmartWare Project Source Code |
| PF4 file extension | SmartWare Corporation | SmartWare Project Source Code |
| PF? file extension | IBM | SmartWare Project Source |
| PFA file extension | N/A | Printer Font ASCII Format |
| PFB file extension | Adobe Systems | Printer Font Binary Format |
| PFC file extension | AOL | AOL Personal Filling Cabinet |
| PFD file extension | iGrafx | Micrografx Optimal Process Flow Diagram Format |
| PFF file extension | Formatta | Formatta Filler Format |
| PFG file extension | Dave2 | JEEPersDX Configuration Format |
| PFI file extension | PhotoFiltre Studio | Panorama Factory Bitmap Image Format |
| PFK file extension | N/A | XTreePro Programmable Function Keys |
| PFL file extension | N/A | Family Lawyer Data Format |
| PFM file extension | N/A | Printer Outline Metric Font Format |
| PFO file extension | Pismo Technic Inc. | Pismo File Mount Audit Package |
| PFP file extension | Smoky City Design, LLC and John Strait | Panorama Factory Project |
| PFR file extension | Bitstream | Portable Font Resource Format |
| PFS file extension | Antonio Da Cruz | Image Studio Picture File Format |
| PFSX file extension | Max Planck Institute | ELAN Document |
| PFT file extension | Corel Corporation | Corel WordPerfect Temporary |
| PFV file extension | Antonio Da Cruz | PhotoFiltre Studio Data Format |
| PFX file extension | N/A | Certificate Format |
| PF_ file extension | GVOX | Encore Compressed |
| PG file extension | N/A | Image PrintFox / PageFox |
| PGA file extension | Just Great Software Co. Ltd. | PowerGREP Action |
| PGAL file extension | VicMan | My Pictures 3D Album Gallery |
| PGB file extension | Ubisoft Entertainment S.A. | Rayman 2 |
| PGC file extension | N/A | Portfolio Graphics Compressed Image Format |
| PGD file extension | Symantec | Pretty Good Privacy PGPdisk Image Format |
| PGDATA file extension | Penguin George | URL Melter Data |
| PGE file extension | N/A | PocketGrandmaster Game Engine |
| PGF file extension | ETH Zurich | Progressive Graphics Format |
| PGI file extension | N/A | Video Recording Format |
| PGL file extension | Just Great Software Co. Ltd. | PowerGREP Library |
| PGM file extension | N/A | Portable Graymap File Format |
| PGN file extension | N/A | Portable Game Notation Format |
| PGO file extension | Lost Marble | Papagayo |
| PGP file extension | PGP | Pretty Good Privacy Encrypted Format |
| PGPF file extension | Musicisforliving.com | Password Generator Password Format |
| PGR file extension | N/A | PowerGREP Results |
| PGS file extension | Blanchard Systems Incorporated | DALiM LiTHO Vector Page |
| PGT file extension | Pokemon Mystery Gift Editor | Pokémon Gift Format |
| PGW file extension | N/A | Map Data |
| PGX file extension | Hopedot Technologies | Hopedot VOS Data Format |
| PGZ file extension | N/A | StreamLync Download Archives |
| PH file extension | N/A | Perl Header Format |
| PHAR file extension | Greg Beaver | PHP Extension And Application Repository Archive Format |
| PHB file extension | Motorola | Motorola Phone Book Format |
| PHC file extension | David Harris | Pegasus Mail Header Cache |
| PHD file extension | CyberLink | PhotoDirector Project Format |
| PHE file extension | WinChess Team | WinChess Game Record |
| PHI file extension | Jon A. Christopher | SPOCK PhiMap |
| PHJ file extension | AccurateCNC,Inc. | PhCNC Project |
| PHL file extension | Amazon | Kindle Popular Highlights Format |
| PHM file extension | Pro Home Manager | Pro Home Manager Data Format |
| PHN file extension | Algoryx Simulation | Algodoo Phun Phunlet |
| PHO file extension | Ucamco | Gerber Photoplot Format |
| PHOTOSHOW file extension | Sonic Solutions | Roxio PhotoShow Project |
| PHP file extension | N/A | PHP Script Or Page |
| PHP1 file extension | The PHP Group | PHP1 Auto |
| PHP2 file extension | The PHP Group | PHP Version 2 Script (HyperText PreProcessor) |
| PHP3 file extension | N/A | PHP Version 3 Script Format |
| PHP4 file extension | N/A | HTML Page With PHP (HyperText PreProcessor) |
| PHP5 file extension | N/A | PHP Script Version 5 (HyperText PreProcessor) |
| PHPEDITPROJECT file extension | Waterproof Software | Project From PHPEdit Solution |
| PHPEDITSOLUTION file extension | Waterproof Software | PHPEdit Project Solution |
| PHPS file extension | The PHP Group | PHP Script Source Code |
| PHPT file extension | The PHP Group | PHP Test Suite |
| PHR file extension | Adobe Systems | Adobe RoboHelp Phrase Format |
| PHS file extension | Xtalview | XtalView Phase |
| PHT file extension | N/A | Partial Hypertext |
| PHTM file extension | N/A | PHP Web Page Format |
| PHTML file extension | N/A | PHP Web Page |
| PHV file extension | Husqvarna Viking | Husqvarna Viking Data |
| PHW file extension | Media Lab, Inc. | PhotoWebber Session |
| PHY file extension | N/A | PhyMod Physical Modeling Data |
| PHYA file extension | Bungie Studios | Marathon 2 Aleph One Physics Format |
| PHZ file extension | Algoryx Simulation | Phun Compressed Phunlet Format |
| PI file extension | 10101 | IPi Pi Calculation Storage |
| PI$ file extension | N/A | Microsoft Compressed PIF |
| PI1 file extension | Degas | Atari Degas Bitmap Image |
| PI2 file extension | Degas | Portrait Innovations High Resolution Image Format |
| PI3 file extension | Degas | Atari Degas Image |
| PI4 file extension | Atari | Atari Degas Image Format |
| PI5 file extension | Atari | Atari Degas Image Format |
| PI6 file extension | Atari | Atari Degas Image Format |
| PIA file extension | PanaVue Inc. | PanaVue ImageAssembler |
| PIB file extension | N/A | Platform Independent Binary |
| PIC file extension | N/A | Picture Format |
| PICIO file extension | N/A | PIXAR Picture |
| PICKLE file extension | Python | Python Pickle Format |
| PICNC file extension | Side Effects Software | Houdini 3D Compositing Image Format |
| PICON file extension | N/A | Personal Icon |
| PICS file extension | Apple, Inc. | Apple Mac PICT Drawing Sequence |
| PICT file extension | Apple | Bitmap Graphics File Format |
| PICT1 file extension | Apple, Inc. | Apple QuickDraw Picture |
| PICT2 file extension | Apple, Inc. | Apple Macintosh QuickDraw/PICT Bitmap Graphics Format |
| PICTCLIPPING file extension | Apple | Picture Clipping Format |
| PICTOR file extension | N/A | PCPaint Image |
| PID file extension | Creative | Creative Driver Format |
| PIDB file extension | MonoDevelop | Parser Information Database |
| PIE file extension | Carl Kenner | Glove Programmable Input Emulator Format |
| PIF file extension | N/A | Microsoft Windows Program Information Format |
| PIG file extension | Flying Lab Software | Game Archive |
| PIGM file extension | Glare Technologies | Indigo Renderer Compressed Material Format |
| PIGS file extension | Glare Technologies | Indigo Renderer Compressed Scene Format |
| PIH file extension | N/A | Karrigell Python HTML |
| PIK file extension | N/A | Protel 99 PIK |
| PIKA file extension | Pika Software | Pika Software Builder Project Format |
| PIL file extension | CMA Microdialysis AB | CMA Microdialysis Trend Data |
| PIM file extension | N/A | PIM Archive Format |
| PIMA file extension | Adobe Systems Incorporated | Adobe Application Manager Package |
| PIMX file extension | Adobe Systems Incorporated | Adobe Photoshop |
| PIN file extension | Sapper Oy | MNS Projection Information Format |
| PINSTALL file extension | Google Inc. | Google Picasa |
| PIO file extension | Avid Technology | Pro Tools I/O Settings Format |
| PIP file extension | Microsoft | Microsoft Office Personalized Settings Format |
| PIPD file extension | Engineered Software | PIPE-FLO Piping System Design Format For The Demo Only Format |
| PIPE file extension | Engineered Software | PIPE-FLO Professional Piping System Project Design Format |
| PIPL file extension | Adobe Systems Incorporated | Adobe Photoshop SDK Samplecode Colorpicker |
| PIQ file extension | Queensgate Systems Ltd | Piped Technology Information Query |
| PIQT file extension | Apple, Inc. | Apple QuickTime Still |
| PIS file extension | ps2dis | PS2DIS Project Format |
| PIT file extension | N/A | PackIt For Mac Compressed Archive Format |
| PIV file extension | Pivot | Pivot Stickfigure Animator Animation Format |
| PIW file extension | PixAround | PI ProcessBook Display Definition |
| PIX file extension | PCI Geomatics | PCIDSK PCI Geomatics Database Format |
| PIXADEX file extension | The Iconfactory | CandyBar Pixadex Icon Format |
| PIXAR file extension | N/A | PIXAR Image |
| PIZ file extension | N/A | Renamed Zip Format |
| PJ file extension | Project64 | Project64 Game Progress Format |
| PJ1 file extension | Project64 Team | Project64 Save |
| PJ2 file extension | adnx | XPlan Document Format |
| PJ4 file extension | Electric Quilt | Electric Quilt |
| PJ5 file extension | Davka Corporation | Davka Hebrew Document |
| PJB file extension | IBM | IBM InfoSphere Information Server Manager |
| PJC file extension | Wholly Genes, Inc. | Master Genealogist |
| PJD file extension | Extensis a division of Celartem, Inc. | Portfolio Exported Categories |
| PJF file extension | N/A | IAddress Postal Job |
| PJG file extension | Matthias Stirner | PackJPG Lossless JPEG Compression |
| PJL file extension | N/A | ProCite Term Lists And Journal Title Lists |
| PJM file extension | adnx | XPlan Project Model |
| PJPEG file extension | N/A | JPEG Image |
| PJPG file extension | N/A | Progressive JPEG Image |
| PJR file extension | labDV | DVDx Project |
| PJS file extension | Phoenix Japanimation Society | Phoenix Japanimation Society Subtitle Format |
| PJT file extension | N/A | Visual FoxPro Associated Memo Format |
| PJUNOXL file extension | Togu Audio Line | TAL-U-NO-LX Audio Preset |
| PJX file extension | N/A | Visual FoxPro Project |
| PK file extension | Adobe Systems | Adobe Audition Graphical Waveform Format |
| PK1 file extension | Atari, Inc. | XS Game |
| PK2 file extension | Joymax | Silkroad Online Game Data Format |
| PK3 file extension | Id Software | Id Tech 3 Engine Resource Format |
| PK4 file extension | id Software | Doom 3 Engine Game Data Format |
| PK5 file extension | Activision | Enemy Territory Quake Wars 23rd Century Warfare |
| PK7 file extension | N/A | ZDoom 7-zip Game Archive |
| PKA file extension | Cisco | Packet Tracer Practice Activity Format |
| PKB file extension | Oracle | Oracle PL/SQL Package Body Format |
| PKCS12 file extension | N/A | Personal Information Exchange |
| PKD file extension | Embarcadero Technologies, Inc. | Turbo Pascal DOS Compressed Batch |
| PKEY file extension | Elcor Software | PowerKey Encrypted Format |
| PKF file extension | Adobe | Audition Peak Format |
| PKG file extension | Apple | Apple MAC OS X Installer Format |
| PKGDEF file extension | Microsoft Corporation | Microsoft Visual Studio Shell |
| PKGUNDEF file extension | Microsoft Corporation | Microsoft Visual Studio Shell |
| PKGX file extension | Microsoft Corporation | Configuration Manager Prestage Content |
| PKH file extension | Oracle | Oracle PL/SQL Package Format |
| PKK file extension | Simon Tatham | PuTTYgen Private Key |
| PKL file extension | Microsoft Corporation | Exchange Migration Wizard Packing |
| PKM file extension | Pokesav | Pokemon Saved Game Data Format |
| PKMDL file extension | Mindware Studios, s.r.o. | Painkiller Overdose Game |
| PKP file extension | SelinSoft | Privacy Killer Plug-in Manager |
| PKPASS file extension | Apple | Apple Passbook Pass Format |
| PKR file extension | PGP Corporation | Pretty Good Privacy Public Keyring |
| PKS file extension | Oracle | Oracle PL/SQL Package Specification Format |
| PKT file extension | Cisco | Packet Tracer Network Simulation Format |
| PKX file extension | IBM | Rational XDE |
| PKY file extension | DejaVu Software, Inc | PockeTTY Security Certificate |
| PKZ file extension | Piboso | Kart Racing Pro Track |
| PL file extension | N/A | Perl Script Language Source Code Format |
| PL0 file extension | Broderbund | 3D Home Architect Foundation Floor Plan Format |
| PL1 file extension | Broderbund | 3D Home Architect Room Plan Format |
| PL2 file extension | Broderbund | 3D Home Architect Second Level Floor Plan Format |
| PL3 file extension | Harvard Graphics | Harvard Chart Palette |
| PL4 file extension | Micrografx, Inc. | Micrografx Designer Graphic Palette |
| PLA file extension | Graphisoft | ArchiCAD Archive Project Format |
| PLAN file extension | Calligra | Calligra Plan Document |
| PLANNER file extension | The GNOME Project | Gnome Planner Format |
| PLANTUML file extension | SourceForge.net | PlantUML |
| PLAYER file extension | 4A Games | Metro 2033 Save Game |
| PLAYLIST file extension | CyberLink | PowerDVD PlayList Format |
| PLAYMISSION file extension | Immersive Education | MissionPlayer Game Format |
| PLAYSET file extension | Souptoys | Souptoys Playset Format |
| PLB file extension | Microsoft Corporation | FoxPro Library |
| PLC file extension | Sunbelt | PL/B Source Format |
| PLD file extension | Impressum | PhotoLine Image Document |
| PLE file extension | Patchou | Messenger Plus! Live Encrypted Log Format |
| PLEXAPP file extension | Plex Media Center Team | Plex Package |
| PLF file extension | Papyrus Software | Papyrus License Format |
| PLG file extension | Avid Technology | Sibelius Plug-in Format |
| PLGX file extension | Dominik Reichl | KeePass Optional Plugin Format |
| PLH file extension | Corel Corporation | Corel PaintShop Photo Pro Presets |
| PLI file extension | IBM | PL/I Program Source Code Format |
| PLIB file extension | Richard Hughey - Kevin Karplus - Anders Krogh | SAM Dirichlet Mixture Prior Library |
| PLIST file extension | N/A | Apple Property List XML Format |
| PLJ file extension | Nirvana Technologies Pvt. Ltd. | Plus 2D Job |
| PLK file extension | N/A | COREX Part-of-speech Tag |
| PLL file extension | Grafx Software Development Tools | CA Clipper 5 Prelinked Library |
| PLM file extension | N/A | DisorderTracker2 Module |
| PLMXML file extension | N/A | PLM XML UGS |
| PLN file extension | Graphisoft | ArchiCAD Solo Project Format |
| PLO file extension | N/A | HP Graphics Language Plotter |
| PLOT file extension | The Open Group | Vector Graphics |
| PLP file extension | Patchou | Messenger Plus! Sound Pack |
| PLPROJ file extension | Adobe Systems | Adobe Prelude Project |
| PLQ file extension | K&K Associates | TAK 2000 Heat Rate Plot |
| PLR file extension | Image Space | Game Player Format |
| PLRE file extension | iWin, Inc. | Coconut Queen Game |
| PLS file extension | N/A | Playlist Format |
| PLSC file extension | N/A | Live Messenger Script Pack |
| PLSK file extension | Patchou | Microsoft Windows Live Messenger Skin Pack |
| PLST file extension | MakeMusic | SmartMusic Playlist Format |
| PLSX file extension | N/A | Xtreamer Internet Radio Playlist |
| PLT file extension | N/A | HP Graphics Language Plotter Format |
| PLT0 file extension | N/A | Nintendo Wii Color Palette |
| PLTCFG file extension | Bentley Systems, Incorporated | MicroStation Printer Driver Configuration |
| PLTN file extension | Apple, Inc. | Appearance Manager Platinum |
| PLTSUITE file extension | Apple | Safari Page Load Test Suite Format |
| PLUGIN file extension | N/A | Plugin Format |
| PLW file extension | Pico Technology | PicoLog Data Format |
| PLX file extension | N/A | PERL Programming Language Script Format |
| PLY file extension | Stanford University | Polygon Format |
| PLZ file extension | IBM | Lotus Freelance Presentation |
| PM file extension | N/A | Perl Code Script Module |
| PM! file extension | David Harris | Pegasus Mail Address Book |
| PM$ file extension | David Harris | Pegasus Mail Temporary |
| PM1 file extension | David Harris | Pegasus Mail Secondary Address Book Index |
| PM2 file extension | David Harris | Pegasus Mail Uid Information |
| PM3 file extension | N/A | Adobe PageMaker 3 Document Format |
| PM4 file extension | Adobe Systems | Adobe PageMaker 4 Document |
| PM5 file extension | Adobe Systems | Adobe PageMaker 5 Document Format |
| PM5F file extension | Adobe Systems Incorporated | Adobe PageMaker For Mac |
| PM6 file extension | Adobe Systems | Adobe PageMaker Document Format |
| PM7 file extension | Adobe Systems Incorporated | Adobe PageMaker 7 Document |
| PM? file extension | Adobe Systems Incorporated | PageMaker Document |
| PMA file extension | Microsoft Corporation | Microsoft Windows Performance Monitor Data |
| PMATRIX file extension | Appfluence | Priority Matrix Project Format |
| PMB file extension | N/A | Polar Uplink Tool Bitmap |
| PMC file extension | Microsoft | Windows Performance Monitor Chart Settings Format |
| PMD file extension | Adobe Systems | Adobe PageMaker Document Format |
| PMDH file extension | David Harris | Pegasus Mail For Mac |
| PME file extension | David Harris | Pegasus Mail Filter Rule Files |
| PMF file extension | ESRI | ESRI Map Format |
| PMG file extension | Adobe Systems | Adobe Pagemaker Group Format |
| PMI file extension | IBM | OS/2 Program Manager Information |
| PMJ file extension | David Harris | Pegasus Mail WinPMail State Format |
| PMJX file extension | N/A | 3D Digital Scanner |
| PMK file extension | David Harris | Pegasus Mail Keyboard Setting |
| PML file extension | Sysinternals | Process Monitor Log Format |
| PMLZ file extension | Palm | Zipped Palm Markup Language Format |
| PMM file extension | David Harris | Pegasus Mail Mail Message Folder |
| PMN file extension | David Harris | Pegasus Mail Annotation |
| PMO file extension | Broderbund | Broderbund PrintMaster Print Meta Object Format |
| PMP file extension | Autodesk | AutoCAD Plotter Model Parameters Format |
| PMPD file extension | Panasonic Corporation | Panasonic Camcorder Extra |
| PMPPKG file extension | David Harris | Pegasus Mail Preferences Package |
| PMQ file extension | Microsoft | Windows Embedded Studio Target Analyzer Information Format |
| PMR file extension | Microsoft | Microsoft Windows Performance Monitor Report |
| PMS file extension | David Harris | Pegasus Mail Signature |
| PMT file extension | Eos Systems Inc. | PhotoModeler Lite Tutorials |
| PMU file extension | David Harris | Pegasus Mail Keyboard Macro |
| PMV file extension | SoftMaker Software | PlanMaker Spreadsheet Template Format |
| PMW file extension | David Harris | Pegasus Mail Draft Stored Outgoing Message |
| PMX file extension | Adobe Systems Incorporated | Adobe PageMaker Document |
| PMZ4 file extension | Cambron Software | Power Music Backup Archive |
| PN file extension | Powernoodle | Powernoodle Format |
| PN3 file extension | N/A | Harvard Printer Driver |
| PNA file extension | PhatNoise | PhatNoise Music Manager Audio Format |
| PNACH file extension | PCSX2 | PCSX2 Cheat Format |
| PNC file extension | IBM | IBM Voice Type Languages Scripts Data |
| PNC1 file extension | Symantec Corporation | Norton Utilities |
| PNCH file extension | RealNetworks, Inc. | RealPlayer For Mac Channel |
| PND file extension | David Harris | Pegasus Mail Connection Information |
| PNDD file extension | Symantec Corporation | Norton Disk Doctor |
| PNDE file extension | N/A | Norton Utilities |
| PNE file extension | Graphisoft | ArchiCAD 9 Education Format |
| PNF file extension | N/A | Microsoft Windows Precompiled Setup Information Format |
| PNFD file extension | Symantec Corporation | Norton FileSaver Data |
| PNFV file extension | Symantec Corporation | Norton FileSaver Volume |
| PNFX file extension | Symantec Corporation | Norton FileSaver |
| PNG file extension | N/A | Portable Network Graphic Format |
| PNG8 file extension | N/A | 8bit Portable Network Graphics |
| PNGT file extension | N/A | Apple Macintosh Paint Image |
| PNH file extension | Adobe Systems Incorporated | Project ROME Plug-in Archive |
| PNI file extension | Popspring | Popnoggin Image Format |
| PNL file extension | Missler Software | TopSolid Nesting Module |
| PNM file extension | N/A | Portable Anymap Bitmap Graphic Format |
| PNNU file extension | Symantec Corporation | Norton Utilities |
| PNO file extension | Microsoft | Microsoft Windows 8 Piano Song Format |
| PNP file extension | David Harris | Pegasus Mail POP3 Server Side Filter Rule |
| PNPROJ file extension | Simon Steele | Programmers Notepad Project Format |
| PNPT file extension | Simon Steele | Programmers Notepad Project Template Format |
| PNQ file extension | ICQ LLC | ICQ Ifile |
| PNRA file extension | RealNetworks, Inc. | RealPlayer Filente Fippra |
| PNRM file extension | RealNetworks, Inc. | RealPlayer For Mac |
| PNS file extension | Popspring | Popnoggin Subject Format |
| PNSD file extension | Symantec Corporation | Norton Speed Disk |
| PNST file extension | RealNetworks, Inc. | RealAudio Preferences |
| PNT file extension | N/A | Apple MacPaint Format Graphic Format |
| PNTG file extension | Apple | Apple Macintosh MacPaint Bitmap Graphics |
| PNUE file extension | Symantec Corporation | Norton UnErase |
| PNV file extension | David Harris | Pegasus Mail Stored Searches |
| PNWI file extension | Symantec Corporation | Norton Wipe Info |
| PNX file extension | David Harris | Pegasus Mail RTF Version Of Queued And Draft Message |
| PNZ file extension | N/A | Panorama Database Set Format |
| PO file extension | N/A | Portable Object Format |
| POA file extension | Electronic Arts, Inc. | FiFa World Cup Game Data Fe Art Legalscr |
| POB file extension | Punch! Software | Punch! CAD 3D Graphics |
| POBI file extension | N/A | Kindle Store Magazine Ebook Format |
| POBJ file extension | Power Of Software | Photo Pos Pro Vector Object Format |
| POC file extension | Poco Systems Inc | Pocomail PocoScript |
| POD file extension | N/A | Perl POD-formated Text |
| POF file extension | N/A | Descent Robot Definition Format |
| POG file extension | N/A | Descent 2 Texture Modification Format |
| POI file extension | Magellan | Magellan Maestro Point Of Interest Format |
| POK file extension | N/A | ZX Spectrum Emulator Poke |
| POL file extension | N/A | Windows Policy Format |
| POLARBOWLERSAVEDGAME file extension | WildTangent, Inc. | Polar Bowler Saved Game |
| POLARGOLFERSAVEDGAME file extension | WildTangent, Inc. | Polar Golfer Saved Game |
| POLICY file extension | Oracle Corporation | Java Policy |
| POLY file extension | N/A | RMCProfile |
| POLYS file extension | M.Carson | Ribbons Polys |
| POM file extension | The Apache Project | Maven Build Format |
| POO file extension | N/A | Commodore C64 Machine Code |
| POOL file extension | LaTeX Project Development Team | TeX Messages |
| POP file extension | Valve | Team Fortress 2 Population Format |
| POPUPSKIN file extension | Miranda IM Project | Miranda Pop-up Skin Settings |
| POR file extension | SPSS | SPSS Portable Format |
| POS file extension | Trimble Navigation | Trimble Position Format |
| POST file extension | Light of Creativity | LIGHT Data Format |
| POSTAL file extension | TomTom International | TomTom Postal Code Format |
| POT file extension | Microsoft | Microsoft PowerPoint 97 To 2003 Template Format |
| POTHTML file extension | Microsoft Corporation | Microsoft PowerPoint HTML Template |
| POTM file extension | Microsoft | Microsoft PowerPoint 2007/2010 Macro-enabled Open XML Template Format |
| POTMENX file extension | N/A | Egis Encrypted PowerPoint POTM |
| POTX file extension | Microsoft | Microsoft PowerPoint 2007/2010 Open XML Presentation Template Format |
| POU file extension | M. Rehfeldt | PLCEdit Program Organisation Unit |
| POV file extension | Persistence of Vision Raytracer | Persistence Of Vision Raytracer Graphic Format |
| POW file extension | Microsoft Corporation | Microsoft Windows XP Power Schema |
| POX file extension | ASA Astrosysteme GmbH | Autoslew Sequence |
| POZ file extension | Smith Micro Software, Inc. | Poser For Mac |
| PP file extension | Pocket Physics | Pocket Physics Saved Data Format |
| PP2 file extension | Smith Micro | Poser Prop Format |
| PP3 file extension | Objectif Lune inc. | PlanetPress Suite Form |
| PP4 file extension | Corel | Micrografix Picture Publisher Bitmap Graphics Format |
| PP5 file extension | Corel | Micrografx Picture Publisher 5 Bitmap Format |
| PP7M file extension | Entrust | Entrust Entelligence Security Provider Password-encrypted |
| PPA file extension | Microsoft | Microsoft PowerPoint 97 To 2003 Add-in Format |
| PPAM file extension | N/A | Microsoft PowerPoint 2007/2010 Macro-enabled Open XML Add-in Format |
| PPB file extension | Corel Corporation | Corel WordPerfect Print Preview Button Bar |
| PPC file extension | Adobe Systems | Adobe Presenter Audio Format |
| PPCX file extension | Adobe Systems | Adobe Presenter Audio Format |
| PPD file extension | Adobe Systems | Adobe PageMaker PostScript Printer Description Format |
| PPE file extension | GSC Game World | S.T.A.L.K.E.R. Post-process Effector |
| PPENC file extension | Ashampoo GmbH & Co. KG | Ashampoo Magical Security Encrypted |
| PPF file extension | Planit Software | EdgeCAM Part Data |
| PPG file extension | Microsoft Corporation | Microsoft PowerPoint Presentation |
| PPI file extension | Microsoft Corporation | Microsoft PowerPoint Graphics |
| PPJ file extension | Adobe Systems | Adobe Premiere Pro Video Editing Project Format |
| PPK file extension | PuTTY | PuTTY Win32 Telnet/SSH Client Private Key Format |
| PPL file extension | Free Pascal | Free Pascal Dynamic Library Format |
| PPLZ file extension | Polar Electro | Polar ProTrainer Training Plan |
| PPM file extension | N/A | Portable Pixelmap Graphic |
| PPMA file extension | SourceForge.net | Portable Pixmap Image ASCII Graphics |
| PPML file extension | N/A | Personalized Print Markup Language |
| PPMOD file extension | Lucas Pope | Papers, Please Mod Format |
| PPM_B file extension | Nokia | Nokia PPM Flash Format |
| PPNT file extension | Microsoft Corporation | Microsoft PowerPoint For Mac Presentation |
| PPO file extension | N/A | Free Pascal Compiled Unit |
| PPOT file extension | Microsoft Corporation | Microsoft PowerPoint For Mac Template |
| PPP file extension | CyberLink | CyberLink PowerProducer Project Format |
| PPP9 file extension | Microsoft Corporation | Microsoft PowerPoint For Mac Wizard |
| PPR file extension | Accord Software & Systems | Project Planner Reader Format |
| PPS file extension | Microsoft | Microsoft PowerPoint 97 To 2003 Complete Slide Show Format |
| PPSM file extension | Microsoft | Microsoft PowerPoint 2007/2010 Macro-enabled Open XML Complete Slide Show Format |
| PPSX file extension | Microsoft | Microsoft PowerPoint 2007/2010 Open XML Complete Slide Show Format |
| PPSXENX file extension | N/A | Egis Encrypted PowerPoint PPSX |
| PPT file extension | Microsoft | Microsoft PowerPoint 97 To 2003 Presentation Format |
| PPT3 file extension | Microsoft Corporation | Microsoft PowerPoint For Mac Presentation |
| PPTA file extension | Articulate Global, Inc. | Articulate Presenter Presentation Resource |
| PPTENX file extension | N/A | Egis Encrypted Powerpoint PPT |
| PPTHTML file extension | Microsoft | Microsoft PowerPoint HTML Presentation Format |
| PPTM file extension | Microsoft | Microsoft PowerPoint 2007/2010 Macro-enabled Open XML Presentation Format |
| PPTMHTML file extension | Microsoft | Microsoft PowerPoint MIME HTML Presentation Format |
| PPTV file extension | N/A | Microsoft PowerPoint |
| PPTX file extension | Microsoft | Microsoft PowerPoint 2007/2010 Open XML Presentation Format |
| PPTXENX file extension | N/A | Egis Encrypted Powerpoint PPTX |
| PPTXML file extension | Microsoft Corporation | Microsoft Powerpoint XML Presentation |
| PPU file extension | Free Pascal | Free Pascal Compiled Unit Format |
| PPV file extension | Microsoft Corporation | Microsoft Pocket PowerPoint Presentation |
| PPW file extension | Micrografx, Inc. | Micrografx Picture Publisher Wizard |
| PPX file extension | Serif | Serif PagePlus Publication Format |
| PPZ file extension | Smith Micro | Poser Compressed Prop Format |
| PPZ9 file extension | Microsoft Corporation | Microsoft PowerPoint For Mac Wizard |
| PQ file extension | Adobe Systems Incorporated | Adobe Pagemaker Default Printer Style |
| PQA file extension | Novell, Inc. | Query Application |
| PQE file extension | Kroll Ontrack Inc. | Ontrack EasyRecovery Recovered Data |
| PQF file extension | Corel Corporation | Corel Presentations Runtime |
| PQHERO file extension | Infinite Interactive | Puzzle Quest Saved Game Format |
| PQI file extension | Symantec | PowerQuest Drive Image Format |
| PQO file extension | U.S. Geological Survey | PhreeqcI |
| PQW file extension | Corel Corporation | Corel Presentations Runtime |
| PQX file extension | PowerQuest | Power Quest Drive Image Index |
| PQZ file extension | Mystic Fractal | QuaSZ Palette |
| PR file extension | N/A | Sun Icon |
| PR0 file extension | CheckMark Software Inc. | CheckMark Payroll Software Company Information |
| PR1 file extension | Polaris Software | Packrat 4.0 Data |
| PR2 file extension | dataBased Intelligence, Inc. | DBase IV Printer Driver |
| PR3 file extension | N/A | DBASE IV PostScript Printer Driver |
| PR4 file extension | Harvard Graphics | Harvard Graphics Presentation |
| PR5 file extension | CheckMark Software Inc. | CheckMark Payroll Distribution |
| PRA file extension | Microsoft | Microsoft Windows Media Adobe Premiere Plug-in Profile Format |
| PRB file extension | xyAlgebra | XyALGEBRA Format |
| PRC file extension | Palm | Palm OS Resource Or Ebook Format |
| PRD file extension | SoftMaker Software | SoftMaker Presentations Document Format |
| PRE file extension | IBM | Freelance Presentation Format |
| PREF file extension | N/A | Macintosh Preferences Format |
| PREFAB file extension | Unity Technologies | Unity Prefab Format |
| PREFPANE file extension | N/A | Mac OS X System Preference Pane |
| PREFS file extension | VectorStorm | Preferences Or Project Settings Format |
| PREL file extension | Adobe Systems | Adobe Premiere Elements Project Format |
| PRESET file extension | The Iconfactory | Flare Graphic Effect Preset |
| PRETTY file extension | Richard Hughey - Kevin Karplus - Anders Krogh | SAM Prettyalign Output |
| PREVIEW7 file extension | Stardock Corporation | WindowBlinds Temporary |
| PREVIOUS file extension | N/A | Mac OS X Address Book Backup |
| PRF file extension | Microsoft | Preferences Or Profile Format |
| PRFL file extension | N/A | Netscale User Profile |
| PRFPSET file extension | Adobe Systems | Adobe Premiere Pro Effect Preset Format |
| PRG file extension | N/A | Program Source Format |
| PRH file extension | N/A | Macromedia ColdFusion Studio Project |
| PRI file extension | Nokia | Qt Project Include Format |
| PRINTCD2 file extension | EPSON | Epson Print CD Format |
| PRINTEREXPORT file extension | Microsoft | Microsoft Print Migration Format |
| PRISON file extension | Introversion Software | Prison Architect Saved Game Format |
| PRJ file extension | N/A | Project Format |
| PRJPCB file extension | Altium Limited. | Altium Designer Project |
| PRJX file extension | IC Code | SharpDevelop Project Database |
| PRK file extension | LucasArts | LucasArts Thrillville Park Format |
| PRL file extension | Corel Corporation | Corel PaintShop Photo Pro Rough Leather Preset |
| PRM file extension | N/A | Adobe Premiere Plug-in Format |
| PRMDC file extension | Adobe Systems Incorporated | Adobe Premiere Pro Metadata Cache |
| PRMR file extension | Adobe Systems Incorporated | Adobe Premiere For Mac |
| PRN file extension | N/A | Generally Printer Output Format |
| PRNX file extension | Developer Express Inc. | XtraReports Report |
| PRO file extension | Nokia | Profile Format |
| PRO4 file extension | Renewed Vision | ProPresenter Document Format |
| PRO4DVD file extension | Renewed Vision | ProPresenter DVD Document Format |
| PRO4PL file extension | Renewed Vision | ProPresenter Playlist Format |
| PRO4PLX file extension | Renewed Vision | ProPresenter Playlist Bundle |
| PRO4X file extension | Renewed Vision | ProPresenter 4 Bundle Format |
| PRO5 file extension | Renewed Vision | ProPresenter Document Format |
| PRO5DVD file extension | Renewed Vision | ProPresenter DVD Document Format |
| PRO5PL file extension | Renewed Vision | ProPresenter Playlist Format |
| PRO5PLX file extension | Renewed Vision | ProPresenter Playlist Bundle Format |
| PRO5X file extension | Renewed Vision | ProPresenter Bundle Format |
| PROCPS file extension | The GNOME Project | Gnome Desktop |
| PRODUCT file extension | The Eclipse Foundation | Eclipse IDE Product Settings |
| PROF file extension | N/A | Profile |
| PROFILE file extension | The GNU Project | Bash Shell Profile Format |
| PROFILES file extension | W3C | Amaya Configuration |
| PROFIMAIL file extension | Lonely Cat Games | ProfiMail Settings Format |
| PROJ file extension | Apple, Inc. | Apple NeXT Interface Builder Project |
| PROJDATA file extension | Microsoft Corporation | Microsoft Visual C# Project Data |
| PROJECT file extension | Eclipse | Eclipse IDE Project Description Format |
| PROJECTPROPERTIES file extension | Alpha Software, Inc. | Alpha Five Project Properties |
| PROOFINGTOOL file extension | Microsoft Corporation | Microsoft Office Proofing Tool |
| PROP file extension | Electronic Arts, Inc. | Spore Property |
| PROPDESC file extension | Microsoft | Microsoft Property Description Format |
| PROPERTIES file extension | Sun Microsystems | Java Properties Format |
| PROPERTIESJET file extension | The Eclipse Foundation | Eclipse IDE Template |
| PROPS file extension | Microsoft | Microsoft Visual Studio Property Sheet Format |
| PROQC file extension | Renewed Vision | ProPresenter Quartz Composition Format |
| PROTO file extension | Google Protocol Buffers Buffer Format | |
| PROVISIONPROFILE file extension | Apple | IOS Provision Profile |
| PROVXML file extension | Microsoft Corporation | Microsoft Windows Mobile Settings |
| PRP file extension | IBM | IBM Rational Rose Model Properties Format |
| PRPROJ file extension | Adobe Systems | Adobe Premiere Pro Project Format |
| PRQ file extension | Flexera Software, Inc. | InstallShield Prerequisite |
| PRR file extension | AccentSoft | Accent OFFICE Password Recovery |
| PRS file extension | Harvard Graphics | Harvard Presentation Format |
| PRSL file extension | Adobe Systems Incorporated | Adobe Premiere Style Library |
| PRST file extension | Adobe Systems | Adobe InDesign Printer Presets Format |
| PRT file extension | Parametric Technology | CAD 3D Part Or Component Format |
| PRTC file extension | Nuance Communications, Inc. | OmniPage |
| PRTDOT file extension | SolidWorks Corporation | SolidWorks Part Template |
| PRTL file extension | Adobe Systems | Adobe Premiere Title Format |
| PRTPRP file extension | SolidWorks Corporation | SolidWorks Part Custom Properties Tab Template |
| PRU file extension | IBM | IBM Tivoli Storage Manager Pruned Entry |
| PRV file extension | E-on Software | E-on Vue Preview Picture Format |
| PRVKR file extension | PGP Corporation | Pretty Good Privacy Private Keyring |
| PRW file extension | Abvent | Artlantis Shader Preview Format |
| PRX file extension | Microsoft | Windows Media Player Media Format |
| PRZ file extension | IBM | Lotus Freelance Graphics Format |
| PS file extension | Adobe Systems | Adobe PostScript Format |
| PS1 file extension | Microsoft | Windows PowerShell Format |
| PS1XML file extension | Microsoft | Microsoft Windows PowerShell Display Configuration Format |
| PS2 file extension | PCSX2 | PCSX2 Memory Card Format |
| PS2XML file extension | Microsoft Corporation | Windows PowerShell |
| PS3 file extension | Adobe Systems Incorporated | Adobe Level III PostScript Document |
| PS7 file extension | Corel Corporation | Corel PaintShop Photo Pro |
| PSA file extension | Adobe Systems | Adobe Photoshop Album Format |
| PSAFE3 file extension | SourceForge.net | Password Safe Database |
| PSAR file extension | Sony | Sony PlayStation Portable Update Data Format |
| PSARC file extension | N/A | Sony Playstation 3 Game Archive |
| PSB file extension | N/A | Adobe Photoshop Large Document Format |
| PSC file extension | Corel Corporation | Corel PaintShop Photo Pro Sculpture Presets |
| PSC1 file extension | Microsoft | Microsoft Windows PowerShell Console Format |
| PSC2 file extension | Microsoft Corporation | Microsoft Windows PowerShell Script |
| PSCX file extension | Manitoba HVDC Research Centre Inc. | PSCAD Power System Simulation Software XML Case |
| PSD file extension | Adobe Systems | Adobe Photoshop Graphics Format |
| PSD1 file extension | Microsoft | Microsoft Windows PowerShell Format |
| PSDL file extension | Microsoft | Midtown Madness 2 City Format |
| PSDOWNLOAD file extension | Apple, Inc. | Apple Mac OS X PubSub Agent Enclosure Download |
| PSDX file extension | Adobe Systems | Adobe Photoshop Touch Graphics Format |
| PSE file extension | Adobe Systems | Adobe Photoshop Elements Project Format |
| PSEG file extension | N/A | IBM Printer Page Segment Bitmap |
| PSESS file extension | Microsoft | Microsoft Visual Studio Performance Session Format |
| PSET file extension | Adobe Systems | Adobe InDesign Format |
| PSF file extension | Adobe Systems | Adobe Photoshop Proof Setup Format |
| PSF1 file extension | N/A | Sony PlayStation 1 Sound Format |
| PSF2 file extension | N/A | Sony PlayStation 2 Audio Format |
| PSFLIB file extension | N/A | Sony Playstation Sound Library |
| PSFLIB2 file extension | N/A | Playstation Sound Format Library |
| PSG file extension | N/A | IBM AFP Page Segment Format |
| PSH file extension | Photodex | ProShow Show Format |
| PSI file extension | Sapien Technologies | PrimalScript Online Help Shortcut Format |
| PSID file extension | Adobe Systems | Adobe Postscript Image Data Format |
| PSION file extension | N/A | Psion A-law Sound |
| PSK file extension | Epic Games | Unreal Engine Character Model Mesh Format |
| PSL file extension | Manitoba HVDC Research Centre Inc. | PSCAD Power System Simulation Library |
| PSLC file extension | Patchou | Messenger Plus! Packaged Scripts |
| PSLX file extension | Manitoba HVDC Research Centre Inc. | PSCAD Power System Simulation Software XML Library |
| PSM file extension | N/A | Protracker Studio Module (sound) |
| PSM1 file extension | Microsoft | Microsoft Windows PowerShell Script Module Format |
| PSMD file extension | Objectif Lune inc. | PrintShop Mail Document |
| PSML file extension | N/A | Packet Summary Markup Language |
| PSMODEL file extension | Delcam plc | Delcam Powershape |
| PSN file extension | 3M | Post-it Notes |
| PSOD file extension | Roxio | Roxio Easy Media Creator Album |
| PSP file extension | Corel | Corel PaintShop Photo Pro Image Format |
| PSPAUTOSAVE file extension | Corel Corporation | PaintShop Pro Autosave |
| PSPBRUSH file extension | Corel | Paint Shop Pro Brush Format |
| PSPCMYKPROFILE file extension | Corel Corporation | PaintShop Pro Profile |
| PSPD file extension | Sonic Solutions | Roxio PhotoSuite Project Format |
| PSPDEFORMATIONMAP file extension | Corel Corporation | PaintShop Pro Deformation Map |
| PSPENVIROMENTMAP file extension | Corel Corporation | PaintShop Pro Environment Map |
| PSPFRAME file extension | Corel Corporation | PaintShop Pro Frame |
| PSPGRADIENT file extension | Corel Corporation | PaintShop Pro Gradient |
| PSPIMAGE file extension | Corel | Corel Paint Shop Pro Image Format |
| PSPROJ file extension | PyScripter team | PyScripter Project |
| PSPSCRIPT file extension | Corel Corporation | Corel Paint Shop Pro Script |
| PSPSELECTION file extension | Corel Corporation | PaintShop Pro Saved Selection |
| PSPSHAPE file extension | Corel Corporation | Paint Shop Pro Shape |
| PSPSTYLEDLINE file extension | Corel Corporation | PaintShop Pro Styled Line |
| PSPT file extension | Apple, Inc. | Apple File Exchange |
| PSPTUBE file extension | Corel Corporation | PaintShop Pro Tube |
| PSPWORKSPACE file extension | Corel Corporation | PaintShop Pro Workspace |
| PSQ file extension | Adobe Systems Incorporated | Adobe Premiere Storyboards |
| PSQL file extension | Areski | AreskiCC |
| PSR file extension | Sybase | PowerSoft Report Format |
| PSS file extension | N/A | Picture And Sound Show Format |
| PSSD file extension | Sonic Solutions | Roxio Creator PhotoSuite Slide Show Format |
| PSSG file extension | Codemasters | EGO Engine Textures Format |
| PST file extension | Microsoft | Microsoft Outlook Personal Folder Format |
| PSTPL file extension | Limesurvey Project | Limesurvey Template Related |
| PSU file extension | N/A | PS2 YABASIC Format |
| PSV file extension | Sony | Sony PlayStation 2 Save Format |
| PSW file extension | Microsoft | Microsoft Pocket Word Document Format |
| PSW6 file extension | AceBIT | Password Depot 6 Format |
| PSWX file extension | AceBIT | Password Depot Password Format |
| PSX file extension | Sony | Sony PlayStation Game Save Format |
| PSY file extension | Synthesoft | Psychedelic Screen Saver Saved Settings Format |
| PSYS file extension | ZEQ2 Project Team | ZEQ2 Format |
| PSZ file extension | N/A | Compressed PostScript Format |
| PT file extension | The Panther Team | Panther Project Format |
| PT3 file extension | N/A | Harvard Device Driver |
| PT4 file extension | Adobe Systems Incorporated | Adobe PageMaker 4 Template |
| PT5 file extension | Adobe Systems Incorporated | Adobe PageMaker 5 Template |
| PT6 file extension | Adobe Systems Incorporated | PageMaker 6 Document Template |
| PTA file extension | Vivendi Universal | NASCAR Racing 2003 Season Game |
| PTB file extension | N/A | Power Tab Guitar Tablature Editor Format |
| PTC file extension | N/A | ABBYY Finereader 5.0 Pro |
| PTCOP file extension | Pixel | PxTone Music Format |
| PTD file extension | Parametric Technology Corporation | Pro/ENGINEER Table |
| PTDB file extension | The Sage Group plc | Peachtree Accounting Data |
| PTE file extension | WnSoft | PicturesToExe Project |
| PTF file extension | Avid Technology | Pro Tools 7.0 And Later Session Format |
| PTG file extension | Ambient Design | ArtRage Project Format |
| PTH file extension | N/A | 4th Dimension Database Windows Pathname Document |
| PTI file extension | Punch! Software | Punch! Professional Home Design Texture Info |
| PTIF file extension | N/A | Pyramid Encoded TIFF Bitmap Graphics |
| PTK file extension | Intuit | Quicken Online Data Format |
| PTL file extension | IBM | Rational Rose Export/import Format |
| PTM file extension | N/A | Poly Tracker Module Format |
| PTN file extension | Nuance Communications | PaperPort Thumbnail Images |
| PTN2 file extension | Nuance Communications, Inc. | PaperPort Thumbnail Cache |
| PTO file extension | The Hugin Team | Hugin Project |
| PTP file extension | The Sage Group plc | ACT! Modem Sync |
| PTQ file extension | MODARTT | Pianoteq Extension |
| PTR file extension | N/A | TrendyFlash Desktop Flash Intro Project Format |
| PTRACK file extension | Richard Hughey - Kevin Karplus - Anders Krogh | SAM Predict_track |
| PTS file extension | Avid Technology | Pro Tools Session Format |
| PTT file extension | Microsoft | Microsoft MapPoint Template Format |
| PTTS file extension | National Laboratory of Pattern Recognition | CASIA-OLHWDB Page |
| PTU file extension | NovaLogic, Inc. | Nova Logic Effects Definition |
| PTV file extension | CodeJam | MemoriesOnTV Photo Slide Show Project |
| PTW file extension | Autodesk | AutoCAD Publish To Web Settings Format |
| PTX file extension | Thomson West | PageMaker Template Format |
| PTXML file extension | Microsoft Corporation | Microsoft Windows DLL XML Related |
| PTY file extension | IBM | IBM Rational Rose 98 Properties Format |
| PTZ file extension | Thomson West | E-Transcript Bundle Format |
| PU file extension | SourceForge.net | PlantUML |
| PUB file extension | Microsoft | Microsoft Publisher Document Format |
| PUBF file extension | N/A | Adobe PageMaker 2 |
| PUBHTML file extension | Microsoft Corporation | Microsoft Publisher HTML Document |
| PUBKR file extension | PGP Corporation | Pretty Good Privacy Public Key Ring Data |
| PUBMHTML file extension | Microsoft Corporation | Microsoft Publisher Archived HTML Document |
| PUD file extension | Blizzard Entertainment, Inc. | WarCraft Map |
| PUF file extension | Briggs Softworks | Puffer Encrypted Format |
| PUI file extension | Peter Pawlowski | Foobar2000 Panels UI Configuration |
| PUMA file extension | N/A | Pumatraker |
| PUP file extension | Puppy Linux | Puppy Linux DotPup Installer Package Format |
| PURBLEPAIRSSAVE-MS file extension | Microsoft | Purple Place Pair Save Game Format |
| PURBLESHOPSAVE-MS file extension | Microsoft | Purple Place Shop Save Game Format |
| PURGEABLE file extension | Apple, Inc. | Time Machine Corrupted Backup |
| PUZ file extension | Microsoft | Microsoft Publisher Packed Format |
| PV file extension | N/A | CONSEL Output P-Value |
| PVA file extension | TechnoTrend | PVA Video Format |
| PVC file extension | Panasonic | Panasonic VM1 Voice Format |
| PVD file extension | HPI | Instalit Script |
| PVE file extension | Gobe Software | GoBeProductive Document |
| PVF file extension | Authentica, Inc. | PageRecall |
| PVG file extension | Microsoft Corporation | Encarta World Atlas Pushpins |
| PVI file extension | N/A | PODBot Knowledge |
| PVJ file extension | K-Flow | ProofVision Job Ticket Format |
| PVK file extension | Microsoft | Private Key Format |
| PVL file extension | N/A | Instalit Library Format |
| PVM file extension | Parallels | Parallels Desktop Virtual Machine Format |
| PVN file extension | Avanquest Software | Desing & Print Business Edition |
| PVPF file extension | Zaplots | Pet Ville Save Format |
| PVR file extension | Imagination Technologies | Sega Dreamcast VR Texture Format |
| PVS file extension | Parallels | Parallels Configuration Format |
| PVT file extension | Peter Bone | Pivot Stickfigure Animator |
| PVTI file extension | Kitware, Inc. | Visualization Toolkit Parallel Image Data |
| PVTP file extension | Kitware, Inc. | ParaView Visualization Toolkit Parallel Polygonal Data |
| PVTR file extension | Kitware, Inc. | Visualization Toolkit Parallel Rectilinear Grid Data |
| PVTS file extension | Kitware, Inc. | Visualization Toolkit Parallel Structured Points Data |
| PVTU file extension | Kitware, Inc. | ParaView Visualization Toolkit Parallel Unstructured Points Data |
| PVU file extension | NOAA | PaleoVu Paleoenvironmental Data |
| PVV file extension | Dynojet Research Inc. | Power Vision WinPV |
| PVW file extension | Extensis a division of Celartem, Inc. | Portfolio Saved View |
| PVX file extension | Kitware, Inc. | ParaView Configuration XML |
| PVZ file extension | Parametric Technology Corporation | ProductView Packaged Structure And Drawing |
| PW3 file extension | N/A | Pulse Player |
| PWA file extension | N/A | Password Agent Encrypted Format |
| PWC file extension | N/A | PictureTaker Format |
| PWD file extension | Siemens PLM Software | Solid Edge Document |
| PWDP file extension | Tan Thor Jen | Password Pad Document |
| PWDPL file extension | Tan Thor Jen | Password Pad Lite Document |
| PWF file extension | Valve | Counter-Strike PODBot Waypoint Format |
| PWI file extension | Microsoft | Microsoft Office Mobile Personal Note Format |
| PWK file extension | Gregory Braun | Password Keeper |
| PWL file extension | Microsoft | Microsoft Windows Password Format |
| PWM file extension | WebMoney | WM Keeper CLASSIC Purse |
| PWN file extension | ITB CompuPhase | Pawn Source Code Format |
| PWO file extension | Certara | WinNonlin Output |
| PWP file extension | Seattle FilmWorks | Seattle FilmWorks / PhotoWorks Image Format |
| PWR file extension | Xilinx, Inc. | XPower Power Report |
| PWRE file extension | LastBit Corp. | PasswordTools Data |
| PWREP file extension | N/A | Password Repository Format |
| PWS file extension | Corel | Print Workshop Image Format |
| PWT file extension | Autodesk | AutoCAD Publish-to-Web Template Format |
| PWW file extension | Maple Hill Software | Patternland Weave Simulator |
| PWZ file extension | Microsoft Corporation | Microsoft PowerPoint Wizard |
| PWZIP file extension | InnovMetric Software Inc. | Polyworks Compressed Archive |
| PX file extension | Pixel | Pixel Image Format |
| PX5 file extension | Poker-Pal | Poker Pal Third-party Extension |
| PXA file extension | Proinfocus | XpressAccounts Data Format |
| PXB file extension | Pixelmator Team | Pixibox Picture Image Format |
| PXC file extension | Photodex | Photodex ProShow Cache Format |
| PXD file extension | N/A | Pyrex Definition Format |
| PXE file extension | Various Linux developers | Linux, Unix Network Bootable |
| PXF file extension | STAR Group | STAR Transit Translation Project Format |
| PXG file extension | Pixelmator Team | Pixelmator Saved Gradients Format |
| PXI file extension | Plextor | PlexTools Disk Image Format |
| PXICON file extension | Panic | CandyBar Icons Package Format |
| PXJ file extension | Roxio | Roxio RecordNow Project Format |
| PXL file extension | Microsoft | Microsoft Pocket Excel Spreadsheet Format |
| PXM file extension | Pixelmator Team | Pixelmator Graphic Format |
| PXML file extension | N/A | OpenPandora XML |
| PXN file extension | N/A | PictureWorks PhotoEnhancer Image |
| PXP file extension | Valve | Half-Life: Counter-Strike POD-Bot Format |
| PXR file extension | Pixar | Pixar Picture Format |
| PXS file extension | N/A | Pegs Picture Image |
| PXT file extension | Microsoft Corporation | Microsoft Pocket Excel Template |
| PXV file extension | Nexilogic | Pixbend Media Format |
| PXX file extension | Tavultesoft | Encrypted Keyman Customisation |
| PXY file extension | Adtollo | Topocad |
| PY file extension | N/A | Python Script Language Source Code |
| PYA file extension | N/A | Microsoft PlayReady DRM Audio |
| PYC file extension | N/A | Compiled Python Script Source Code |
| PYD file extension | N/A | Python Dynamic Module Format |
| PYG file extension | IBM | IBM Cognos 7 |
| PYH file extension | IBM | IBM Cognos 7 |
| PYI file extension | IBM | IBM Cognos 7 |
| PYJ file extension | IBM | IBM Cognos 8 |
| PYM file extension | VRVis Research | PYM Python Preprocessor Macro Format |
| PYO file extension | N/A | Python Compiled Format |
| PYT file extension | Python Software Foundation | Python Declaration |
| PYW file extension | N/A | Python GUI Source Script Format |
| PYX file extension | N/A | Pyrex Source Code Format |
| PYZ file extension | Python Software Foundation | Python Zipped Executable |
| PZ2 file extension | Smith Micro | Poser Pose Format |
| PZ3 file extension | Smith Micro | Poser Scene Format |
| PZA file extension | Sonic Solutions | MGI Photosuite Album Format |
| PZD file extension | The CAD Zone, Inc. | Pocket Zone Drawing |
| PZF file extension | GraphPad Software, Inc. | GraphPad Prism Project |
| PZFX file extension | GraphPad Software, Inc. | GraphPad Prism XML Project |
| PZIP file extension | WinZip Computing, S.L. | Zip Compressed Archive |
| PZL file extension | Tibo Software | Jigs@w Puzzle Format |
| PZM file extension | GraphPad Software, Inc. | GraphPad Prism Project |
| PZO file extension | Application Techniques, Inc. | Pizazz Plus Overlay Data |
| PZP file extension | Sonic Solutions | MGI Photosuite Project Image Format |
| PZR file extension | Smith Micro Software, Inc. | Poser Scene |
| PZS file extension | Sonic Solutions | MGI PhotoSuite Slide Show Format |
| PZT file extension | GraphPad Software, Inc. | GraphPad Prism Template |
| PZZ file extension | Smith Micro | Poser Compressed Scene Format |
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