Additional permissions are required to access the files (Word for Mac)

This did indeed fix the problem for me...which unfortunately came back with version 16.28. Redoing this process again fixes the problem. Hope we won't have to do these steps with every update.

The 16.27 update release July 16 2019 should fix most of the issues with this Bug.

Additionally the following are some fixes that will fix this specific error and similar permission errors with Office Mac products

1. Update Office to 16.27 or later (choose Check For Update from the Help menu in any Office Application)
2. Remove Microsoft ADAL keychain entries (search for ADAL in the keychain and remove those items)
3. Remove the securebookmarks preference files

Press Command+Shift+G in the finder then paste the following

~/Library/Containers/com.microsoft.Excel/Data/Library/Preferences/

Within this folder remove the following file

com.microsoft.Excel.securebookmarks.plist

Press Command+Shift+G again and then paste in the following

~/Library/Containers/com.microsoft.Word/Data/Library/Preferences/

Within this folder remove the following file

com.microsoft.Word.securebookmarks.plist

After any and all of the above steps, please reboot your machine (manually removing preferences and keychain items does not guarantee they will be recreated properly unless you restart)

Additionally if the files are located on a shared drive, the files may be open by someone else. The other users may also just have the files highlighted in the finder (whereby it is then generating a preview of the file and therefore the file is marked as open)

The above

James, I feel your pain. I've spent an immense amount of time trying to fix the problem, too. And for me that means a bunch of lost revenue. I wish I could send Microsoft a bill! 

If I could just use Apple, Google and Adobe products exclusively, I would happily do so. But that's just not realistic. All of my clients use Microsoft Office, and I'd be out of business if I refused to use it too.

The really sucky thing for me is that Office 2011 is being phased out. If Microsoft doesn't fix their problem on the new version, I'm dead in the water.

For the Microsoft Moderator on this thread,

• Play nice with Dropbox - I know you want to force everyone to use OneDrive, but that's completely unrealistic too, and will only create more problems for you and your users.
• Play nice with 3rd party font management tools like Suitcase - You don't get to dictate how users manage their fonts. You provide the software that renders fonts, so make it work.

Hi ShaniGrewal,

Did you check above reply? Please update us, if you still need help.

Regards,

Neha

Hi ShaniGrewal,

Please check if you have used any third-party font in the affected document. If you do have third-party font, please check the following thread for suggestions.

"user does not have access privileges" when opening Word documents

If the issue persists, please confirm the following information:

1. Open new document, click File>Open, navigate to the location where the document is saved and then check if you can open the document now.
2. Are you getting the error with the specific Word document or all the documents have the same issue?
3. Did you make any change in the document recently that caused the issue? Were you able to open the document before?
4. Are you the owner of the document or it is shared by someone else?

Thanks,

Neha