UPDATED 31/07/17 for Office Mac 2016.
Original method from Kerry Clark in this article.
How to Get Illustrator Vectors Into Mac PowerPoint
I always run into this problem. Someone wants a map or design in Microsoft PowerPoint®. But it has to be editable. No problem if I build it in PowerPoint. But, I don't work that way. It's way harder than it needs to be. I prefer to work in a program that's built for vector-based image building.
Go ahead and build your file in Illustrator.
Export your art as an EMF (enhanced metafile).
If you...