Bill Jelen is MrExcel! He is principal behind the leading Excel website, MrExcel.com. He honed his Excel wizardry during his 12-year tenure as a financial analyst for a fastgrowing public computer firm. Armed with only a spreadsheet, he learned how to turn thousands of rows of transactional data into meaningful summaries in record time. He is an accomplished author of books on Excel and is a regular guest on The Lab on TechTV Canada. You can find Bill at your local accounting group chapter meeting entertaining audiences with his humorous and informative Power Excel seminar. His website hosts more than 12 million page views annually.