Vectorworks not supported. Is there a Reason?

Rhino supports a lot of files from other packages but not Vectorworks. I work in an industry where that software is prevalent. I often get an unhappy face when I say I no longer use it and ask that the file be exported to .dwg.

Just for my edification, is there a reason Rhino does not support it? Is Nemetschek not making the .vwx format available? Is the cost of licensing it prohibitive? Is the user base too small and does not warrant the effort? Are there technical problems with the conversion?

Hello - that would most likely be because there is not a public sdk for that product.