- "Is she coming to the office?" - "Does she come to the office" is punctually correct as well depending on what you're trying to say!

"Is she coming to the office?" is correct!

Am/is/are + verbING - an action at the moment of speaking or the present time period; planned action. Do/does + verb - an action in present in general (often, seldom...); timetable. In your case it's a question about a plan.

This kind of sentence is in the present continuous tense. The present continuous tense is always formed using the verb "be" + "(verb)ing." This shows that an action is still in the process of being completed.

Is she coming Dude