The first video is already showing up on some other wood working sites I follow, because it shows fine wood working at a very high skill level.
The quality of cut from the hand plane just amazes me. I would really like to try a pull type Japanese hand plane one day.
The other video shows how to sharpen files. In my shop I have several files and rasps that I use very regularly and knowing how to sharpen and extend their lives is useful.
Just a couple of videos to watch while drinking your coffee after supper.