how can i export STL after the reconstructed triangulate surface of the myrobustcrust program from mathcenter?

i am student ,  last day i found a program on the internet about 'Simple surface recostruction program based on Crust algorithm ,Given a set of 3D points returns a triangulated tight surface' ,it is very good and can work smoothly.However, i want to export the STL data from the reconstructed triangulate surface of the program,how can i do? sincerely hope your wise advices. thanks