Spent a good deal of time working with Microsoft, and they were not able to help.

I can go to another user account, and it will authenticate there.

Any ideas This is the administrator account, has lots of other SW configuration data on it, and has an extensive back-up history (both on Time Machine and an off-site backup solution).

I wasnt hopeful, since Office would authenticate in other user accounts, just not mine.

The long and the short of it was that it worked Office now works in all accounts.

After Sierra installed, I was informed that I had some incompatible software, which it quarantined.

Unfortunately, I had already seen those posts, and none of those strategies worked for me.

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