Hi, I am trying to export files to open in bentley microstation. Pix4D states to that you export as a DGN format, but Pix4D doesnt offer that option of format type. see below screenshot. Please expand on this direction.
For any model, you can draw a surface or polylines and export this as .dgn format. For more information, I would suggest you go to go through our support article on, How to export objects in the rayCloud.