Edited my first post btw, but Kuriimu comes with tools for texture editing too and pretty much anything you might want for simple edits.what if i wanted to edit textures and stuff?
about 696MB (windows says so)How big is this game.dat file? it's possible that it's compressed, encrypted, or more likely, not supported yet since FTI has not interacted with that game or any of its files yet.
I know Kuriimu looks like magic but for every file that it can work with, we had to write specialized code to handle the file in the form of a plugin.