Hi, I wonder if there is away to reduce file size so that I can speed up the design process.

I'm usually getting part or assembly with alot of surfaces from my customers, and I will import this info to my SolidWork file to design a container, all I really need is the outer envelope of a part or assembly to check if they are fit into my container. is there a quick way of creating an outer envelope (surface) of a part or assembly,so it will be reduced in size and speed up performace.

Thanks