How to play/convert .bytes?

I’ve found all of the music from ‘The World Ends with You -Solo Remix-‘ inside my copy of the .ipa. They’re all in a .bytes format and I have no idea how to play or convert the files into a playable format. (The credits theme is most likely only stored in the .mov file, staffroll.mov which I’ve posted on here a few minutes ago in a .acc file.) I’m sure it’s against the rules to give them out (and I’d rather not as well) so I won’t be giving them out. Any help would be appreciated and would be directed to a public rip that I’ll make whenever I can get them to play.