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Microsoft 365 and Office | Excel | For home | Windows
A family of Microsoft spreadsheet software with tools for analyzing, charting, and communicating data.
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Since the issue is affecting both Excel and Word, it could be related to your Office installation. I suggest trying an Online Repair to thoroughly fix any issues with the installation.
In the search bar, type Control Panel > go to Programs and Features > find Microsoft 365/Office > right-click it > select Change > then choose Online Repair.
If the issue persists, you can use the Office Uninstall Support Tool (Uninstall Troubleshooter) to completely remove Microsoft Office from your device and then reinstall it:
https://aka.ms/SaRA-officeUninstallFromPC
Once you open the link, click Get Help. When the tool launches, select Yes, then click Next. Choose the option to uninstall Microsoft 365 and follow the on-screen instructions to complete the process.
To reinstall Office:
Go to https://account.microsoft.com/services
Sign in with the Microsoft account associated with your Office license.
Locate Microsoft Office and click Install.
Run the downloaded installer and follow the on-screen instructions.
Once installed, open an Office app such as Word or Excel and sign in with the Microsoft account associated with your purchase to activate Office.