it follows a simple scheme:
Header: Usually the first few bytes identify it and store metadata.
Example from one of the files:
43 49 4D 41 00 00 00 18
43 49 4D 41 is ASCII "CIMA" magic number
The next bytes often store file size or version info...
I could help you if you ever need help with this I love this game a lot especially gigant battle 2 and I'd be willing to be working on translating it too perhaps. I support you on this. But from where would you get the English voicelines?
Sorry, my comment was terrible the other day. Awful grammar. I meant to say I would like to English dub all the characters in game, but if the game wasn't English translated like Gigant Battle one is it may not be worth it cause if people cant...