Are you trying to make your "wireframe" into a body-shell or monocoque of sorts? I can't get the file to open on my solidworks but if that's what you're trying then you'd be looking for the surface tools. Fill surface or boundary surface will probably do it, but be warned, surface can be a massive pain to make work properly. From there thicken would turn it into a model of a certain thickness and a representation of your body-shell but your best bet is to watch the tutorials, have a look on YouTube and then have a play.
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