How to open SMI file extension?

The author of advice: Mr Brankiewicz

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

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

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

  • Microsoft SAMI Subtitles Format

    .smi file extension

    Category: Digital Video Files

    OS Software
    Windows ACDSee Photo Manager 12 ACDSee Photo Manager 12
    Apple QuickTime Player Apple QuickTime Player
    RealNetworks RealPlayer RealNetworks RealPlayer
    Ambulant Player Ambulant Player
    MAC OS Apple QuickTime Player Apple QuickTime Player
    RealNetworks RealPlayer RealNetworks RealPlayer
    Ambulant Player Ambulant Player
    Linux Ambulant Player Ambulant Player
    RealNetworks RealPlayer RealNetworks RealPlayer
  • Mac Self-mounting Disk Image Format

    .smi file extension

    Category: Disk Image (ISO) Files

    OS Software
    MAC OS Apple Disk Utility Apple Disk Utility
    Apple Disk Copy Apple Disk Copy
    Aladdin ShrinkWrap Aladdin ShrinkWrap

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

  • Download Malware/viruses removal tool from SMI 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 SMI extension of files?

The problem that often causes damage concerning SMI 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 SMI 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 SMI file extension
  • SMI 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 SMI files


If SMI 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 SMI 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 SMI 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 SMI 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 SMI 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 SMI file? [ Add information about a SMI file ]

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