ZFX File Format

The .zfx file contain a bunch of other files concatenated into a single file. This is done to decrease seek times when reading files from disk or CD.

Intel style byte ordering
File Count (4 byte int)
Directory (13 byte strings, 0 padded 8.3 format – always at least one terminating null character, always starts at offset 4, 0 padded to a fixed size of 600 strings - 7800 bytes)
File Offsets (always starts at 7804, 600 32bit ints)
Files (always start 12604, offsets are from start of file so this tidbit isn’t really needed)