Exporting optimized solution to CAD

Dear Colleagues,

I am preparing my tutorial for the Virtual Academic Training Series and I am facing the following problem.

I did some first hand optimization using Inspire, now I would like to export the geometry I obtained and import into CAD software in order to re-design it. For that, I exported the optimized topology into Evolve. Using the Solidthinking Evolve I am trying to save it as .stp, .igs. .x_t, however every time I try the Evolve software gives me the following message 'Error saving file'.

The file (.evo) is in attached, I would like to know how could I export this to a CAD software.

Thank you for your help.

Best regards
Vitor Finotto