Working files allow you to work alongside the author as he teaches you to use this powerful 3D CAD software. Alex then jumps right into sketching, parts, and assemblies. With each lesson building on the one before, you will learn in bite sized chunks that you will remember from lesson to lesson.
I had a niggling problem with the installation and they supported me through the entire process. In the end they did a remote install - problem fixed!
Advanced Solidworks 2012 Tutorial - Using the Wrap Feature