The standard Autosave (note the spelling) utility that ships with Excel just saves workbooks at a set interval, overwriting the file on disk. This is not very convenient if you planned to leave the master file intact and save the changed workbook using a different filename. It also does nothing to simplify recovery of unsaved/changed documents after a system crash. This Autosafe utility creates copies of open workbooks at regular intervals in a separate (user-selectable) directory. It does not overwrite the master file(s), that is up to the user to do, using normal methods. As soon as a workbook is closed the backup copy is deleted from the backup directory. If an abnormal termination of Excel occurs, the backup copies remain on disk, and Autosafe finds them the next time Excel is started and presents recovery options to the user.