Can Scientists 'Upload Knowledge' Directly into your Brain to Teach New Skills?

Imagine the world where you do not have to make any efforts to learn new skills or knowledge. Just like new programs are uploaded to a Robot to teach them new skills, What if new skills are uploaded to your brain to make you learn, say, playing Guitar, a whole language like French or German or anything else you wish? Do you want a technique, if exists, to make this possible? Of