Clean Model/Remove Unneeded Faces/Edges

I have converted a .dae file to .skp and imported into sketchup. I am wondering if anyone knows of an extension to downsize the file. Each face is fragmented into many smaller faces and edges and as a result makes the file want to crash the program when selecting all to make a group or exploding the model. Also makes it very difficult to add materials to faces.

First thing I would try is CleanUp3 from the Extension Warehouse. After that, Skimp from Mind Sight Studios.

Wonderful. Will give that a try. Thanks Dave.