Ugh....that doesn't sounds very promising.      Are they previously filed returns that you have a printed or saved copy of?   Or do you maybe have a program backing up to the cloud for you...like Carbonite or something similar?

@IntuitAustin ...I know 2019 saves a cache file for each client, does that have any use in this type of situation where a client file may have become corrupted? (Im not sure what the cache file is actually for)