How to upload ArchiCAD *.PLN files to GrabCAD?

Hi, Colleagues!
My model is a building. I've created it using ArchiCAD only.
Some years ago GrabCAD allowed to upload native *.PLN files.
But new filter doesn't recognize ArchiCAD *.pln as a proper native format.
I've ported the model to the most common 3D formats and uploaded them.
As we all understand, specific BIM data has been lost.
Convertion to IFC or RVT formats cannot provide 100% compatibility.
Please, add the ArchiCAD formats *.PLN and *.GSM to the filter exclusions.
Thank you!