This might be more of a XaraX question but I intend to use it in Xara3d

How do I make places inside a sold blank or contain nothing.

Example. I make a circle solid blue. I then make bars of white that go through the circle breaking it up into lines. I now only want the blue part to be left when I export it to Xara3D, but the white bars are solds too and the whole thing looks like a block. I've selected everything and marked them as editable shapes, but I think I am missing something. Sample image below...

http://www.tnet.com/docs/documents/circle.jpg
The resulting emf file is:
circle.wmf