export contours in 3D CAD formats

[Lapicito]

Thank you, Andrea. I have found that the problem is that I tried to open the CAD file, generated in Zephyr, in an old version of MicroStation. It only read it in 2D. I then ran it in current versions of AutoCad and found that they read it in 3D.
Thanks again.

[Andrea Alessi]

Hi Lapicito,

contour lines elmenets are indeed 3D elements, so, yes.

Is this a generic question (if so the answer is yes) or are you having a specific issue? If so, please share more details so I can give you a more tailored response, thank you!

[Lapicito]

I want to export contour lines of my models in 3D CAD formats (dxf or dgn). But the program only exports 2D files (in the mentioned CAD formats). I don't see any option to choose 3D or 2D. Is it possible to export 3D contour lines in those CAD formats?