If you had saved your Excel file, then you may revert the Excel file to the last saved version. Follow below steps to do this:
- On the File tab, click Open.
Double-click the name of the file that you have open in Excel.
Click Yes to reopen the Excel file.
If you had not saved Excel file, then follow below steps to recover your file.
- Click the File tab.
Click Recent.
Click Recover Unsaved Workbooks.