When I import an .ige (iges) file that is of nurbs curves it just shows as one sop that doesn't actually have the actual curves although when I am in the sop it provides I can move the individual curves around but can't cut and re-paste them or get them to be actual curves so that I can do things like use it as a backbone of a sweep.

I am wondering if there is a way to be able to convert the data imported as an .igs into being truly usable in this sense. thanks