How to recover corrupted Electrum wallet.dat I invested in bitcoins at the beginning of 2015. At the same time back in 2015, i installed Electrum wallet and somehow an offline version which meant that I stored the bitcoins on the computer's hard drive, this offline version was not something I wanted, it just happened by a mistake. Once the bitcoins were sent to my Wallet, it took about 3 days until the hard drive crashed.
A good friend managed to get into the hard drive via the wrong safe mode, and ran a backup of all important files, including the files to Electrum, including my wallet.dat file, which I have understood is a relatively important file.
I bought a new computer and downloaded the files from my backup and tried to restore my wallet, but I could not solve this.
An error message appeared when I tried to access / restore Electrum. When I tried to open the wallet file in a program called something with HEX, (which people had written about in diffrent forums), it stod ”the file is corrupt” according to the program.
I let it all go and more or less forgot this until now. I have read and i was thinking, could the reason why the file apears to be &quot;corrupt&quot; , just because its  encrypted? I know the password for the encryption and I have just finally finished syncing the Bitcoin core. But i dont now how to decrypt it, and is my idea about the file issue, possible?
What is my next step to recover my bitcoins?
If the file is corrupt, it will require manual editing to be able to open it with electrum.
Depending on how corrupt the file is, it might be possible to recover and and it also might not.
Say, for example, a single bit is flipped. Then a brute-force approach might work where every bit is flipped in the file and then check which result can be opened and decrypted with electrum..
Check with electrum developers who are most familiar with how a non-corrupt file should look.
If I were in this situation myself, what I would also do is generate a few new wallet.dat files using the same electrum version you used in 2015, open them in hex viewers / text editors next to each other, and try to see the patterns. Compare to your corrupt file.
Good luck.