Indeed she does.
She has loads of nice files, since her family owns a cosmetic shop; she has however found that my charge is far nicer. Good for leatherman, bad for me I suppose.
I even have an extra SURGE file, and for whatever reason she doesn't like it. I'm guessing she has a better grip with the charge. Good luck ever getting a comprehensive tool analysis out of most women!
I actually use the nail file on the micra to deburr my nails after clipping; I use the file on the charge on my nails only when I am killing time in traffic or something, or if I've chipped a nail and it needs work.