I just dumped Gal*Gun using the HENkaku decryption method, and I have a few questions...
First, most of the game's files are in .xxx format. After googling it, the only result that came up was that this extension is used by some ransomware, so I highly doubt that's it. Is there any way to read those files?
Also, I think that the saves I dumped aren't decrypted. They are the same as the one in ux0:user/00/savedata/[gameID], and there isn't anything readable. Did I do something wrong?

Finally, that's a dumb question, but... How can I play the game again? Do I simply delete the [gameID] folder in ux0: patch/?

Thanks!