convert .smg to .skp

hello,

I want to use a composer file in google sketchup

i have a .smg and i want to convert it in a skp file.

if i first convert it to 3ds and then inport it in sketchup and save it as a sketchup file it is very big.

i only need the 3d model and not the information the the file.

Does anybody now how to convert it to sketchup and not make the output to big?

Wouter

SolidworksComposer