Extrude the bottom and top faces away from the origin? Move them? Idk what you want.I suggest you youtube some modeling tutorials.Since this is about modeling, and not exporting its self.Telling you how to model through a forum is a bad idea.
Yeah, I really didn't think about the fact that forums wouldn't help... I know how to model, it's just the stupid curving thingy
How do you get a box to be curved into a C shape?
Go to tools and select "text generator". A window will pop up, type the letter "C" into it. A box in the shape of a C will appear in your windows.