Musescore file corrupted

A couple of my files for my scores got corrupted and I am unable to open them no matter what I do. I had them on a thumb drive and didn't have any backups saved anywhere else. I tried reading every post I could, I cant even get the autosave files to open and I've tried changing the ".autosave" and it still won't work. It would mean a lot to me if someone could help me recover these files.