Hi,

I'm new in solidworks, doensn't know much. But currently im doing a research which needs me to get to know solidworks.

I'm having a problem with my model where it is too complex for my research purposes. I am currently doing a research on the aerodynamic of a proton saga flx. So, i downloaded a obj. file from the internet and converted it into a dxf file den imported it into solidworks which gives me a "complex" assembly file. However, the space inside the car model and the complex assembly is giving me problems where my computer couldn't manage it. I am seeking help on how do i fill the entire car model and make it into a single solid? I've been through the internet on how to use the "filling" function and all sort of stuff like knit or combine. It doensn't works for me so far. I only need the exterior surface of my model and the interior to be filled. that's all. Can anyone help me?

I coundn't attach the solidworks file here. Because the file is too big. its 5GB big.

Thank you.