If you "found" these files on the internet or worse paid for them, they are empty and fake.
Not quite sure why you'd automatically jump to the worst assumption. They're 100% mine and were on an old USB I was sorting through. I simply cannot remember the password I used. Many people have been in this exact situation.
99% of the Electrum history, it created a wallet file without any extensions and the content is stored simply as a human readable JSON file. .dat extension is one that bitcoin core and some other wallets use.
Specially if this is a wallet created in those two years, it is impossible to have a .dat extension.
Specially if this is a wallet created in those two years, it is impossible to have a .dat extension.
Yes my mistake. I got confused because I renamed one of them to .dat to try on BTCRecover. They are indeed just standard files without any extension