desktop versions create a backup. it's a hidden file in the Turbotax folder (under users/documents in a windows computer) that starts with a "~". even when you delete the actual tax file the backup should still be there unless you deleted that also. just remove the tilde and the double click on it to open. you can then save it. then the 2021 file should be there when you start 2022. if you deleted both then the only place either file might be the trash folder.
