Stefan.
I followed your advice and repaired my 2016 Office program, but my view of a Word Document remains the same with only three icons showing.
I still ask the same question:
What happened to the fourth icon that used to be at the top right corner of a Word Document?
Is it that Microsoft, on a whim, removed it from their program?
What am I not understanding here?
Is there any way the fourth icon can be restored because it was very useful to me?