Right-click the Excel file that you cannot open and select Properties. When the Properties dialog shows up, switch to the Security tab. Hit the Edit button to change permissions.

When you open a corrupted workbook in Excel, the program should automatically attempt to recover data from the file via File Recovery. If File Recovery mode fails or doesn't start, however, you ...

If Excel is not opening on double-click or not responding on your Windows 11/10 PC, take a look at the addons first, or else follow these suggestions to resolve the issue.