3dm v6 conversion to 3dm v4 or v5 on a Mac?

 From:  tom_tm (TOMF)
12039.1 
Dear forum.

I wish to convert a STL file to a 3dm file to open in MoI but all online converters only give me v6 files- which I can't open in the current version of MoI.

I know there is a free translator available called Rh3dmConverter that some clever bod has very kindly written but alas it only works on Windows.

There is a converter for Mac for Food for Rhino, but every time I land on the page my browser greys the screen and I can't download.

Any suggestions?

PS, and OT I'm now quite excited as I can finally afford to buy a seat of MoI3D which I will do later today!

kind wishes,

Tom