Sometimes when you are working on a Excel file, and suddenly, your Mac crashes. After you restart your Mac, you only find that you haven't saved the Excel file. Don't worry, you can recover unsaved excel files.

To recover unsaved Excel files on Mac, you need to get the help of AutoSave and AutoRecover features that are provided by Excel. If they are enabled, it won't be a problem for you to recover unsaved excel files and restore previous versions in Excel 2010 - 2013.

To check and change how frequently your Excel files are automatically saved:

1. Click Preferences on the Excel menu.
2. Under Sharing and Privacy, click Save button.
3. Select the AutoSave or AutoRecover info every check box, and then enter how frequently you want Excel to save workbooks.