The File Extensions Database

.CSM File Extension

  • Developer by: Autodesk
  • Category: 3D Image Files

What is an .CSM file?

.CSM is Character Studio Marker File

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.

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

Programs that open Character Studio Marker File
Autodesk 3ds Max 2018
File Type 2 Steam Game Backup File
Developer by: Valve Category: Backup Files

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.

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.

Programs that open Steam Game Backup File
Valve Steam

How to solve problems with CSM files

  • Associate the CSM file extension with the correct application. On :
    Windows: Right click on any CSM file and then click "Open with" > "Choose another app". Now select another program and check the box "Always use this app to open *.CSM files". Mac: Right click (or Ctrl-click) the CSM file, then click "Open with" > "Other...". Then choose another program and check the "Always Open With" box. Linux: Right click on the file, and select "Open with" and choose another program. iPhone: Tap the file. If you do not see an app to open the file, then tap Share "Share" and choose an app. Alternatively, save the file. Then open the Files app Files app. There long-press on the file, then release your finger. You will see a black menu bar. Then tap "Share" and select an app. Android: Tap the Settings icon on your smartphone, then tap on the Apps section. There tap the Options icon in the top right-hand corner of the screen to change the default apps.
  • Update your software that should actually open .CSM is Character Studio Marker File. Because only the current version supports the latest CSM file format. Search, therefore, e.g. on the Autodesk manufacturer website after an available .CSM is Character Studio Marker File update.
  • To make sure that your CSM file is not corrupted or virus-infected, get the file again and scan it with antivirus software.