You cannot simply type indexofbitcoinwalletdat into Google anymore. To do it better, you must use specialized tools.

Common misconfigurations include:

A server with directory listing enabled may show something like:

Index of /backup/wallets/
[ ] wallet.dat            15-Nov-2024 08:32   2.1 MB
[ ] wallet.old.dat        10-Nov-2024 22:15   2.0 MB

So, you found a wallet.dat using advanced indexing. Now what? The "better" method involves professional forensic recovery, not just double-clicking.