Not everybody is a data-entry drone. I have no use for it, and I’m in a technical career.
Your manager, that most likely started his career as a tech person as most tech manager do, likely uses Office a lot and he certainly isn’t a data-entry drone. One day as you progress in your career you’ll too.
PS: whoever doesn’t understand this comment and downvote right away should really think about their life. If one doesn’t understand that a manager does need to be proficient in MS Office then you’ll never get there / have a very hard time.