To restore your data, all you need to do is put the backup copy of your MacGourmetDatabase file back into your Documents folder. This file is your actual database, and cannot be imported in the same way a MacGourmet Deluxe export file can be imported. You need to actually put this file itself back into the expected location, so that MacGourmet Deluxe can find it when it starts. After that you will want to lauch the MacGourmet app, not the database.