To be able to open the tutorial you will need Adobe Acrobat Reader. You most probably already have it on your computer, but if not, here is where you can download it: http://get.adobe.com/reader/. Once you have installed Adobe Acrobat Reader, all you will have to do to open your tutorial is to click on it.
I'm sure you will enjoy this tutorial. Unfortunately, I cannot accept returns because it's an e-tutorial.
Feel free to contact me if you have any questions or need help regarding this tutorial. Thank you. Ikuyo