.FRK File Extension
File TypeMacintosh Resource or Data Fork
File format categories include Binary, Text, XML, and Zip. The format of this file type has not been determined.
What is an FRK file?
File containing the resource fork (resource.frk) or data fork (data.frk) of a Macintosh file; possibly separated during a data transfer.
Resource and data forks were commonly seen in Mac OS Classic, but are not used in Mac OS X.