No very clear. Where can I find that Mash program?

Yeah I've seen the blank esp files but I was curious how they were made and if that is the kind of thing this TC was using.

Hey, I was curious in making a total conversion how did you clean out all the TES objects/references that you didn't need in your game? Did you edit the .esm and remove cells, worldspaces, dialogue, etc or did you just start a .esp and create completely new worldspaces and still have all that extra ...