Unknown file extension
File type: Unknown file
The .cm_ file extension is not associated with an identified file format or software product.
File type category:
Unknown file
Date updated: October 4, 2026
This record does not identify a vendor, application, or documented purpose for the .cm_ file. Its contents cannot therefore be determined reliably.
No specific program is known to open the .cm_ file. The file should be identified from the software or device that created it before an appropriate application is selected.
The .cm_ file cannot be converted reliably because its format and contents are unknown. Conversion requires identifying the originating software and using that software's supported export function, if available.
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