I hadn’t used my wallet for a long time. I ran bitcoin-qt to syn my wallet (for some reason it loaded the complete blockchain and not just for the last year), everything was stored on an external sdd. After sync there was no option in the menu to load my wallet. I downloaded a newer version on a different computer, unzipped it and ran it from the desktop (I think the program on the first computer had been deleted). Again the syn was for over 12 years. When done it didn’t recognize my wallet and asked me to create one. The wallet.dat file on the ssd was created on the date of the syn. How can I retrieve my old wallet data and import it?