How to Fix Office for Mac Editing Blocked Error 0x0
Question details
Users are unable to edit documents because Office for Mac applications block editing and display an authorization error.

- Product
- Microsoft Office for Mac
- Device & OS
- macOS
- Scenario
- Attempting to edit files in Word, Excel, or PowerPoint after reinstalling macOS or the Office suite.
- Observed behavior
- The Office application reports that the account cannot edit files and throws error 0x0 during the authorization process.
Ensure you have the Microsoft OneDrive app installed on your Mac and have the login credentials ready for the Microsoft 365 account associated with your active Office license.
Refresh Account Authorization via OneDrive
Signing into the OneDrive application forces a refresh of your Microsoft 365 account credentials, which clears the 0x0 error and restores editing access across all Office apps.
When macOS or Office is reinstalled, the primary Office applications sometimes fail to properly read the authentication tokens. Because OneDrive shares the same Microsoft authentication environment on macOS, logging into OneDrive can successfully generate a new token that Word, Excel, and PowerPoint can use to verify your license.
Launch the Microsoft OneDrive app on your Mac. If you do not have it installed, download it from the Mac App Store or the official Microsoft website.
Enter the email address and password for the Microsoft account that holds your active Office subscription or license.
Completely close out of Word, Excel, and PowerPoint. You can do this by right-clicking their icons in the Dock and selecting 'Quit'.
Reopen Microsoft Word or Excel. Check if the 'editing blocked' banner has disappeared. If prompted, sign in once more within the Office app to finalize the authorization.

Use WPS Office as a Hassle-Free Alternative on Mac
Tired of dealing with complex Microsoft Office activation errors and editing blocks? WPS Office is a lightweight, free alternative that works seamlessly on macOS, allowing you to edit your files immediately without licensing hurdles.
- 1. Download WPS Office: Visit the official WPS website and download the macOS version of WPS Office.
- 2. Install the Application: Open the downloaded file and drag the WPS Office icon to your Applications folder.
- 3. Open Your Office Files: Launch WPS Office and directly open your existing Word, Excel, or PowerPoint documents to start editing immediately.

Frequently Asked Questions
Why does error 0x0 occur on Office for Mac?
Error 0x0 typically occurs due to corrupted or mismatched authentication tokens after a major system update, migrating to a new Mac, or reinstalling the macOS or Office suite.
Will reinstalling Microsoft Office again fix the 0x0 error?
Reinstalling the apps usually does not resolve the issue because the broken license files and cached credentials remain stored in the macOS hidden library folders. Using the OneDrive sign-in method is a much faster and more effective solution.
What should I do if signing into OneDrive doesn't work?
If the OneDrive method fails, you may need to download and run the official Microsoft License Removal Tool for Mac. This tool completely clears old license files from your system, allowing you to perform a clean sign-in when you reopen Word or Excel.




