.CSM File Extension

Steam Game Backup File

Developer Valve
3.6  |  11 Votes

What is a CSM file?

Backup file used by Steam, a digital distribution service used to access games and software; contains the backup data of a game played with Steam; similar to a .CSD and .SIS file.

More Information

To restore a CSM backup file, select Steam → Backup and Restore Games... and choose the file. The CSM file is located with other CSD and SIS backup files in the appropriate game folder in the "Steam Backups" folder.

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Programs that open CSM files


Character Studio Marker File

Developer Autodesk
3.3  |  14 Votes

ASCII text file that contains position markers for a 3D character; used by Character Studio, a biped animation tool included with Autodesk's 3ds Max program; saves the position of the biped in the software's motion capture buffer.

More Information

Limb rotation data is not stored in CSM files, but is saved related .BVH files.

Programs that open or reference CSM files


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