Bill Jelen, Excel MVP and the host of MrExcel.com, has been using spreadsheets since 1985, and he launched the MrExcel.com website in 1998. He loves performing his live Power Excel seminars around the United States. He has produced more than 2,200 episodes of his daily video podcast, Learn Excel from MrExcel. He is the author of 57 books about Microsoft Excel and writes the monthly Excel column for Strategic Finance magazine. Before founding MrExcel.com, Bill Jelen spent 12 years in the trenches, working as a financial analyst for finance, marketing, accounting, and operations departments of a $500 million public company. He lives in Merritt Island, Florida, with his wife, Mary Ellen.