I got a new computer and gave my old one to my wife. Before I had a chance to save some files she deleted my admin account and set up one for herself.
How do I get my old files off the computer?
There are a few options given when deleting an account on a Mac:
If she chose the second option, to save the home folder, you might still have your files. Are you comfortable using terminal? If so, you can navigate to the users/ folder and see if you see your old username and if anything is in there. If there is, you can use some commands to move the files onto the desktop
cd /Users ls -l sudo mv -r [username] ~/Desktop
If she chose the first option, then cd/Users/"Deleted Users" instead of /Users. If she chose the third option, that's beyond what I know to do. Either way, check those two folders.