Excel not working

I have used Parallels on Mac OS for many many years without issue and actually have been impressed at how well MS Office programs have functioned.
Since about one year ago, MS Excel is not working with message "Excel not responding" whenever I open an Excel file or start a new one.
I have upgraded my Mac OS, Windows, Parallels and Office just now and still have the same situation.
Can anyone help me.

 

Since you've already upgraded MacOS, Windows, Parallels, and MS Office, but Excel is still showing "Excel not responding", here are some troubleshooting steps that may help:

1. Check Parallels Resource Allocation
If Parallels is not allocating enough RAM or CPU to Windows, Excel might freeze.

• Open Parallels Desktop → Click Control Center → Select your Windows VM → Click Configuration (gear icon).
• Under Hardware → CPU & Memory, make sure:
  • RAM is at least 4GB (8GB is better).
  • CPU is set to at least 2 cores (or more if available).
• Apply changes and restart your VM.

2. Open Excel in Safe Mode
Try launching Excel in Safe Mode to check if an add-in is causing the issue.

1. Open Run (Win + R).
2. Type:
   bash
   excel /safe
   
   
3. Press Enter.

If Excel opens fine in Safe Mode, disable add-ins:

• Go to File → Options → Add-ins.
• Disable all add-ins and restart Excel.

3. Repair Microsoft Office

1. Open Control Panel → Programs & Features.
2. Select Microsoft Office → Click Change.
3. Choose Quick Repair. If that doesn't work, try Online Repair.

4. Disable Graphics Acceleration

1. Open Excel (if possible, even in Safe Mode).
2. Go to File → Options → Advanced.
3. Scroll down to Display and check "Disable hardware graphics acceleration".
4. Restart Excel.

5. Check for Conflicts with MacOS Features

• Disable App Nap for Parallels:
  
  • Go to Applications → Parallels Desktop.
  • Right-click Parallels → Get Info.
  • Check "Prevent App Nap".
• Check Disk Permissions on Mac:
  
  • Open Disk Utility → Select Macintosh HD.
  • Click First Aid → Run.

6. Reinstall Microsoft Office
If nothing works, a clean reinstall may help:

1. Uninstall Office from Windows.
2. Delete remaining files in:
   makefile
   C:\Program Files\Microsoft Office
   C:\Users\<YourUsername>\AppData\Roaming\Microsoft\Office
   
   
3. Restart Windows.
4. Reinstall Office.

7. Test with a Different User Account

• Create a new Windows user in Control Panel → User Accounts.
• Log in with the new account and open Excel.

8. Update Parallels Video Drivers
Parallels Graphics Drivers might cause issues:

• Open Windows Device Manager → Display Adapters.
• Right-click Parallels Display Adapter → Update Driver.

Final Option: Reinstall Parallels & Windows
If nothing works, consider reinstalling Parallels and creating a fresh Windows VM.

Let me know what you've tried, and I can guide you further!