An mcv file extension is related to the Mac Video file format. Seems to be obsolete.
There is one other file type using
the MCV file extension!
.mcv - ManyCam effect file
MCV file extension - Mac Video file
What is mcv file? How to open mcv files?
File type specification:
The mcv file extension is supposedly used for some mac video files. No further information could be found. If you know any, please send us information about via the submit file extension button.
This mcv 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.