Creating a solid model from mesh file

Hi everyone,
I am a new user of grasshopper, I am trying to create a solid model from the mesh file made by the grasshopper.
Is there anyone who can guide me with this?

Here I attached the file.


3D Voronoi Porous Structure- V3 - (18.5 KB)

Check this using Multipipe

3D Voronoi Porous (13.9 KB)