STL not grabbing all components

I'm creating items for a catalogue and being that I can't get the dpi I need I am having to contract out for the actual print work, that being said the guy can open STL files which I sent him to later find out that all my components were left out, how do I get them in? This seems to be the easiest course for me at the moment so if anyone has any ideas I would like to hear them.SolidworksImport export