How to open PMM file extension?

The author of advice: Mr Brankiewicz

PMM files are incessantly popular. However, a file name containing PMM file extension is problematic for some of the users. They have problems with correct opening of a file with PMM extension. However, it should be remembered that PMM file extension can match one or more types of files. The most popular is Pegasus Mail Mail Message Folder but if there are others, you will find information concerning them below.

So, it is worth looking close at the problem concerning PMM files and search for its solution.

A list of programs supporting files types with PMM extension can be found below. Applications are sorted according to appropriate operational systems and their popularity.

  • Pegasus Mail Mail Message Folder

    .pmm file extension

    Category: Database Files

    OS Software
    Windows Pegasus Mail Pegasus Mail
  • MikuMikuDance Format

    .pmm file extension

    Category: Database Files

    OS Software
    Windows MikuMikuDance MikuMikuDance

How to check if a file we want to open is not infected by malware or viruses?

  • Download Malware/viruses removal tool from PMM files in the Windows system.
  • Click “Start scanning” and wait until the programme performs the scanning process on your computer.

What are the reasons of errors concerning PMM extension of files?

The problem that often causes damage concerning PMM extension are Windows system registry errors. That is why, in the first place it is recommended to:

  • Scan computer in order to identify, repair and open the PMM file
  • Check system registry from the angle of hidden errors
  • Repair file’s associations with programs in the system registry

If you are not sure if the above problems concern you, you should consider other frequent irregularities:

  • You do not have an appropriate application installed that supports PMM file extension
  • PMM file is corrupted
  • The application’s version necessary to open the file is not correct
  • The file is not assigned to an appropriate program

Solving problems with PMM files


If PMM file does not open, firstly, it is worth using files associations built in the Windows system with application that can support them. In order to do it, you should double-click a PMM file icon. A list of programs that probably support such a file will appear. It is enough to choose one of them so that Windows would open a given extension with it. Incorrect file’s association will result in Windows trying to open PMM file with a wrong program all the time even if there is an appropriate application supporting this format on a drive. In this case, it is necessary to perform the above mentioned registry scanning and associations’ repair.

If associations are correct and Windows still cannot open the file, most probably the computer does not have appropriate software supporting files with name containing PMM in their extension. The solution to this problem is very simple. You should buy or download a free (if they exist) application that will allow you to open, browse and edit PMM format (You can also try to find more informations on FileInfo). It is no risk because many paid programs have free test versions enabling to check their functionality.

Do you have extra information about a PMM file? [ Add information about a PMM file ]

KEXIS file extension LGC file extension

5 564

of file extensions

8 858

of file types

5 504

of applications opening the files

1 661

of producers