If you cannot close Excel on your Windows 11/10 PC, use the solutions provided below to fix the issue: Force close Excel and restart it Install Office updates Open Excel in Safe Mode ...

If you cannot open Microsoft Office program files, you can start Word, Excel, PowerPoint, Outlook, Publisher, Viso, etc, in Safe Mode in Windows 11/10.

If bugs and issues are preventing you from working on your Excel spreadsheets and Word documents, you may want to try Safe Mode.