Extruding SVG

I want to extrude my outlines from Adobe Illustrator. They import alright but they do not want to extrude into solids. When I use the curve object data set to 3D and extrude, they are not solid.
How can I get these to extrude as solids?


SVG.blend (397 KB)

I know it sounds strange, but have you set it to 2D instead of 3D ?

I often noticed that setting curves to 2D will fill the holes, while 3D will not.