Export: Geometry made of Quad instead of Sort

Hello

Do you know a way to export (generate) a model with quad polygons and not  triangles?

Or to simplify the model (low poly) because in stl the faces are not polygoned very cleanly. And in Iges the faces are rather clean but the number of polys is abused. (about 700k)

I can try to create the holidays in 3DS Max but I would prefer to keep the ones from SW (better modeled).