DAT (Reset)
This format is from a game called "Reset" from Theory Interactive.
Just a quick note here. Probably wrong but was only 2mins of actually looking at process monitor. XD
First 4 bytes is file count.
Index struct is 4 bytes (Number of wchar), ? bytes (filename data), 8 bytes (unknown1), 8 bytes (unknown2). The two unknowns are probably file size and location.
This looks sloppy... I'll fix later. ^^;