extract mesh from a freeform

Hi,

I use the GH v0.9.0014 and I don't know why but I don't find the function for extracting mesh data.

I've one freeform and I'd like to export its parameterization u,v,w but I don't find the proper way to do that. 

do you have an idea?

find attached a excel sheet with an example of freeform exporter as I'd like.

thanks in advance,