How do I view the leaderscreens in Blender

Ok so I succesfully got exported the leaderfiles into nb2 files. I downloaded the scripts for import and export for blender and pasted them in
C:\Program Files (x86)\Blender Foundation\Blender\.blender\scripts

But I can't actually import those files. Can anyone help me?

Also where are the leaders' textures files? I can't fnd them anywhere.

I don't know anything about modding graphics in Civ5, so I need some help.

Okay so I got Blender to work.

I also got info about the TexMod thing, which doesn't seem to work.Holding * does nothing.

Can I get those files somewhere else?

Also, is there a way to show the leader's as blank and show only the background?

You might find better answers if you personally message those who had made a custom leaderscreen for their civilizations.