The software the EE's use for board layout (Allegro and OrCAD) will only output IDF 2.0 and 3.0

I am a ME and I want to bring the boards in with traces, vias, copper layers, etc for thermal simulations.

I have only found a few posts on it though it has been out for years... Does anyone know how to export/generate an IDF 4.0 file??

Thank you