I am so sorry for writing in that old thread. But need some help or suggestions by more knowledgeable people.
Some time ago I had my first bitcoin-core wallet (in 2017-2018). Wallet files was just deleted from SSD, but few days ago with program from OP I have founded 7 wallet.dat files on this SSD, but when I launch pywallet with those files I always got an error:
"ERROR:root:Couldn't open wallet.dat/main. Try quitting Bitcoin and running this again."
and of course bitcoin-qt can not handle those wallet files. I remember my passwords for wallet decoding. But seems messages by "pywallet" means those recovered files not valid at all? What I can do in next step to try recover those wallet files if they are not corrupted at all?
P.S. I had a 2-3 working wallets (maybe on this SSD) at all with a low bitcoin balance on them. But at this moment those balances may become a few thousands of dollars, which is very nice for me at this time...