How to open .CGM files on Windows
To open .CGM files on Windows, right-click the .cgm file and choose open with..
Step-by-step instructions
- Right-click the .CGM file and choose Open with.
- Select a trusted Windows app that supports .CGM files.
Recommended software
- Default Photos app
- Browser preview
- GIMP
Alternative methods
- Open .CGM in a browser-based viewer if desktop apps fail.
- Try opening .CGM on Windows with a secondary app to rule out app-specific issues.
- Convert .CGM only with trusted tools when direct opening is not possible.
Common issues
.CGM file does not open
This usually means the required app is missing or the .CGM file is incomplete.
- Install or update a compatible application.
- Verify the file came from a trusted source and was fully downloaded.
- Try opening the file in an alternative app on another platform.
Security note
Only open .CGM files from trusted senders.