| File Type 1 |
Global System for Mobile Audio File (Most common) |
| File Format |
File |
| Common? |
No |
| File Description |
Audio format designed for telephony use in Europe; optimized for recording vocal audio, such as a telephone conversation |
| Program(s) that open gsm files |
Mac / Windows: NCH Switch Sound Format Converter; Apple QuickTime Player 5 or later |
| File Type 2 |
US Robotics GSM Audio File |
| File Format |
File |
| Common? |
No |
| File Description |
Audio format used to transfer voice over a modem; used by the GSM QuickLink, VoiceGuide, and RapidComm models; sometimes used for audio faxes |
| Program(s) that open gsm files |
Mac / Windows: j2 Global Communications eFax Messenger |
| File Type 3 |
Graphic Description Language File |
| File Format |
Standard File |
| Common? |
No |
| File Description |
3D object that is defined using the Graphic Description Language (GDL), a standard method of describing three-dimensional shapes; recognized by ArchiCAD and other Building Information Modeling (BIM) applications. |
| Program(s) that open gsm files |
Mac / Windows: Graphisoft ArchiCAD |
|
