IF scandisk/chkdsk was set to save recovered files, then you just need to find the file and rename it. Although it might be partially damaged. If it was just a text file then most of it could possibly still be recoverable.
Look for any files on your system with a name of file0001.chk, file0002.chk, file0003.chk, etc.
IOW, search for file*.chk or file????.chk
If you find multiples, then open them with a text viewer to see if you can find the one you're looking for.