This file will basically allow you to perfectly reproduce actions you have seen others do. For example, let's say you are a bad dancer, then simply watch a good dancer and your brain will automatically analyse the movements and will program your body to be able to do them. This file can be used if you want to play an instrument well like piano or guitar by watching others. You can also copy fighting styles (be careful, some of the copied movements can be strenuous to the body)