.ARCH00 File Extension
File TypeF.E.A.R. Game Archive
File format categories include Binary, Text, XML, and Zip. The format of this file type has not been determined.
What is an ARCH00 file?
Data archive format used by F.E.A.R. (First Encounter Assault Recon), a first-person shooter video game; includes game data referenced by the F.E.A.R. and required for the program to run; typically should not be opened manually, but can be modified using a third-party archive tool.