Creating 3d voronoi from points

Hi!

I am somehow new to grasshopper and have been working with 3d voronois. I have worked with random voronoi formations inside a bounding shape, and also with voronoi formation in a cube shape.

I understand now that the cube shape doesnt matter as it can be trimmed away on rhino.. however i would like to know if I could create a 3d voronoi from a set of points ? Please could someone help! I have set up points i would like to use, new%20voronoi%20from%20points.3dm which i have attached the rhino file alone.. i am struggling with the grasshopper algorithm...

please is there someone that could help me?

many thanks!