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Via translation tool, I got following content:
If your account has the license for Microsoft Office desktop apps, please try following steps:
- Open any Office app such as Word> Sign out from the Word app> Quit all Office app.
- Go to the Finder> Applications> Utilities> Keychain Access> Remove the Identities related to Microsoft Office.
- Restart your Mac> Re-open any Office app such as Word> Sign in with this account to activate Office apps.
If these steps do not work, use License Removal tool to remove the Office license files on the Mac; reference: How to remove Office license files on a Mac (microsoft.com)
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