An frk file extension is related to the Mac OS Classic operating system for Apple Macintosh computers.
FRK file extension - Apple Macintosh resource or data fork
What is frk file? How to open frk files?
The frk file extension is associated with the Mac OS Classic.
the frk file contains resource or data fork.
Most likely some old format without support. No further information could be found.
This frk 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.