Comic Collector collection data file
File type: Various data file
A .cmc file is a collection data file used by Comic Collector.
It stores data for a comic book collection managed in the application.
File type category:
Various data file
Date updated: October 11, 2026
The .cmc file extension is mainly associated with a collection data format used by Comic Collector, a comic book management and cataloging application from Collectorz.com.
The file contains catalog data for a comic book collection and is used by Comic Collector as part of its collection-management system. It is intended to be handled by the application rather than edited as a general-purpose data file.
Comic Collector is available for Microsoft Windows.
Open a .cmc file with Comic Collector on Microsoft Windows.
Other programs may not be able to interpret the collection data correctly because the format is intended for Comic Collector.
Comic Collector allows users to export their collection data, but whether this applies directly to .cmc files is not clear.
Software applications that handle other tasks involving cmc files:
Microsoft Windows
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