Open GSM File

The GSM extension is used to store digital audio raw data files on a computer or mobile device by direct recording.

This file format is generally used in mobile phones.

The GSM file format was specifically designed for telephone use and optimized for self-voice recording of any type of telephone conversation.

GSM files can be compressed and uncompressed for the purpose of reducing storage size.

GSM files are losslessly compressed, consisting of a stream of bits encoded in audio format.

GSM, however, is generally based on an audio data format or container with a defined storage layer.

Software to open and work with a GSM file

How to open GSM files

Typical GSM application file locations:

  • C:\Program Files (x86)\QuickTime\QuickTimePlayer.exe "%1"

Typical GSM mime types:

  • audio/x-gsm

Frequently used application names to open GSM files:

Frequently associated Windows objects:

  • QuickTime.gsm

Related extensions