Exporting 3DEXPERIENCE parts to Catia V5

Hi all, When I export a 3DEXPERIENCE part back to Catia V5 I find that I get a dumb solid with isolated links. I cannot open up the internal tree for the solid to edit hole positions etc and the geometrical items are all isolated. Is it possible to export 3DEXPERIENCE parts to Catia V5 and allow it to be editable?