The file can be downloaded from both your confirmation email and confirmation page immediately after purchase.  This file is a "Zip File" - to open, simply double click on the file and open the folder.  Inside the folder, there will be two audio files:

01. Yin yoga stillness.mp3
02. Yoga Nidra limitless.mp3

For best results, please listen in this order.  To listen, open the file in iTunes or any other music player. Enjoy!