A new window opens showing the most recently saved version of this file.In the File Explorer, select the file and click on the “History” button on the “Home” tab.If you’ve already enabled File History, you can restore a previous version of an Excel workbook as follows: External USB storage media or a network drive is required for the backup. File History not only protects against loss of data due to hard drive failures or viruses, it also lets you recover accidentally overwritten files. The optional File History feature in Windows 10 saves all files to a separate user directory on an external drive at regular intervals (and when you make major changes).