Files with kcm file extension might be found as part of Hungarian program called KönyvCalc by MM.sys Számítástechnikai Bt.
KCM file extension - KönyvCalc data
What is kcm file? How to open kcm files?
File type specification:
The kcm file extension seems to be used in a Hungarian program called KönyvCalc by MM.sys Számítástechnikai Bt.
No further information about KCM file type could be found. Probably obsolete format.
This kcm file type entry was marked as obsolete and no longer supported file format.
This type of file is no longer actively used and is most likely obsolete. This is typically the case for system files in old operating systems, file types from long discontinued software, or previous versions of certain file types (like documents, projects etc.) that were replaced in higher versions of their original programs.