Bill Jelen is the host of and the author of 67 books about Microsoft Excel including Excel Gurus Gone Wild, Pivot Table Data Crunching, and Microsoft Excel Inside Out. He was an ESPN commentator for the World Excel Championships, has made more than 80 guest appearances on TV’s Call for Help with Leo Laporte and was voted guest of the year on the Computer America radio show. He writes the Excel column for Strategic Finance magazine. He has produced over 2,400 episodes of his video podcast Learn Excel from MrExcel. Bill will entertain you while showing you the powerful tricks in Excel. Before founding in 1998, Jelen spent 12 years “in the trenches,” as a financial analyst for the accounting, finance, marketing and operations departments of a publicly held company.