What is a GSM file?
A .GSM file typically functions as an ArchiCAD Library Object or a Global System for Mobile Audio file. When used in ArchiCAD by Graphisoft, the file contains a 3D model stored in the Graphic Description Language (GDL) format.
When functioning as an audio file, a .GSM file contains highly compressed voice data optimized for telephony. The European Telecommunications Standards Institute developed this standard to transmit speech efficiently over mobile networks. Rarely, .GSM files act as probabilistic simulation models for GoldSim or project files for MapViewer.
How to open GSM files?
Opening a .GSM file depends on its actual data format. You can load 3D objects directly into ArchiCAD or import them into 3ds Max. For audio recordings, you can use media players like VLC media player or edit them using Audacity.
Because the .GSM extension has multiple possible meanings, we recommend using viewer.online/gsm to identify the actual format of your file. viewer.online/gsm analyzes .GSM files to identify their exact format and creator software, shows which programs can open the file, and usually previews it.
Best practices and troubleshooting
If your computer does not know which application to use, it is because 3D software and audio players both claim the .GSM extension. Do not force an audio player to open a 3D model. Determine the file type first. If you possess an audio file and require a universally supported format, we recommend file conversion to sensible target formats like .MP3 or .WAV on convert.guru.
Software and tools
You can manage 3D .GSM files with ArchiCAD or view them with compatible CAD tools. For audio formats, FFmpeg is an excellent command-line tool to process and convert the telephony data quickly.
Summary
viewer.online/gsm directly opens and previews .GSM files in the browser, eliminating the need to install software or troubleshoot compatibility issues.