Occasionally, when trying to open a Word document on MacOS, users can receive an error message which states:'Microsoft Word cannot open the document: user does not have access privileges'.
This is a known bug with Office 2016 for Mac. It is normally very easily resolved by ensuring your Office for Mac is updated to the latest version (Open Word and click > Help > Check for Updates) and then rebooting your computer.
If this does not resolve the problem, an alternative cause of the bug can be third party font management software such as Suitcase Fusion conflicting with Office 2016. Again, the issue is normally resolved by ensuring that your Font Management software is updated to the latest version. You can read more details of this error and how to solve it here: https://appuals.com/office-2016-grant-access-error-on-macos/