Holes do not appear in import CREO Parametric

j’exporte mon travaille dans CREO Paramétrique et Des trous traversants n’apparaissent pas, car les sommets des lignes verticales ne sont pas jointes.
Comment faire autrement ?
(Rhino 6)

I export my work in Parametric CREO and Through holes do not appear, because the vertices vertices are not joined.
How to do otherwise?

Hello - what format are you using to transfer the files? Step? Can you send us an example (tech@mcneel.com, to my - Pascal - attention)