A family of Microsoft spreadsheet software with tools for analyzing, charting, and communicating data.
Hi PwaYee Guo,
Welcome to Microsoft community where you can find all the answers related to Office.
As per the description provided, you are unable to quit Excel. Let me help you to close Excel completely.
This issue may occur if the Excel add-in is missing. Let us restart Excel in its application safe and check if the issue occurs.
To open Excel in its Safe Mode, follow these steps:
Click Start, go to Programs, go to Accessories, and click Run, type Excel /safe. (Note that there is a space between Excel and**/**)
If the application works fine safe mode, try disabling the add-ins for the application and check the result,
- Click the File tab.
- Go to Options.
- Click Add-ins.
- Click on GO options beside Manage, uncheck all the add-ins and click OK.
Hope the suggestion is helpful. If you need further assistance, reply and we will be glad to assist you.
Thank you.