EFC file extension - FAIRCOPY encrypted fair copy
What is efc file? How to open efc files?
File type specification:
The efc file extension seems to also have been used for some sort of encrypted file generated by program called FAIRCOPY. It seems to be old and discontinued program and even the developers website is defunct now.
This efc 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.