The files are “zipped” are Microsoft PowerPoint files or PDF’s. To view these and learn from them you’ll need to either a) have PowerPoint installed on your computer or should b) install a PowerPoint viewer available here free for PC’s only (Note: if you are on a mac you can use Apple Keynote (part of iWork $59) or the PDF’s) . Anyone, of course can use alternatively, the “PDF” version of these files that I’ve made available at the same site (here’s a download link to a “PDF” viewer if you need it – PC & Manumber of good tutorial files as time allows…. Cheers, Misha