The instructional videos are in 'MP4' format. These types of files are widely supported by most video players. If you simply click to play the video files it will automatically open your default video player to play the files.
The music is in 'MP3' format. Again this is a widely accepted format for music and should open with your default music player.
We have asked a number of our friends and family to trial downloading all these files and they all said it was super easy. Even those who we consider technologically challenged ha ha ah. So if that is you - do not fear! It is super easy. Just click on the link you will be sent - and follow along. Bravo - you have joined the new age too! Welcome.