You can try the following steps to see the result:
- Quit all Office applications.
- Clear Office credentials: Search 'Windows Credentials' in Windows Search Box > Windows Credentials > Delete credentials related to Office.
- Open Excel > File > Account > Sign in with your Office account.
If the steps do not work, please refer to Shawn Collins's reply.
The Excel workbook may have been protected with some settings in original work organization. Such as Azure Information Rights Management. To access it, you need to sign in the organization account.
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