If you use Excel 40 hours a week (and those are the weeks you are on vacation), welcome to the MrExcel channel. Home to 2,400 free Excel tutorials. Bill "MrExcel" Jelen is the author of 67 books about ...

At first, it sounds like satire. Twelve contestants jog through a glowing “hype tunnel” in Las Vegas, cheered on by fans and cameras, as if entering an Olympic arena. They take their seats, open ...