Tesselate
Modify > Tesselate
 

Description:

      The Tesselate (Modify > Tesselate) command will tesselate all selected objects or faces by dividing faces with more than three edges into multiple faces, all with three edges. The program will determine where to add the necessary edges, but the object is gauranteed to have only three-sided faces. If a face has been made extremely non-planar to the point where it can't be drawn, then it can't be tesselated either.  Tesselate can be used in object or face selection modes.


Notes:

-Tesselate can be useful for exporting to some file types or programs which only support three-sided faces.