I need help and if you have an answer please comment!

When I'm working with MS Office documents I often need to switch between documents quickly. In Windows, you press "Cntrl + Tab" and it switches from one document to another. On the MacOS, that flips you to a whole different application, not two windows in the same application (i.e. switch between documents).

Is there a Mac Office keyboard shortcut from flipping between two documents in the same Office application?

(still ramping up on my "Mac as a enterprise platform" education - only 6 weeks into using absolutely no Windows products  :-)