Remove hidden data and personal information by inspecting …
If you want to remove hidden data and personal information from documents that you save in the OpenDocument Text (.odt) format, you must run the Document Inspector every time that you save the document in that format.
Video: Remove personal data from files - Microsoft Support
Remove hidden data and personal information by inspecting documents, presentations, or workbooks. Word training. PowerPoint training. Excel training. Outlook training. Training: Use Inspect Document to remove personal data from your file before sharing it with others.
Repair an Office application - Microsoft Support
Repair an Office application. If a Microsoft 365 application such as Word or Excel isn’t working correctly, sometimes restarting it will fix the problem. If that doesn’t work, you can try repairing it. When you’re done, you might need to restart your computer.
Activate Office - Microsoft Support
Activate a brand new Office product key. Troubleshoot activation errors. Activate Microsoft 365 or a non-subscription version of Office. When you start an Microsoft 365 app that's not activated, …