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 ...

Heather Haddon covers restaurants from The Wall Street Journal's Chicago bureau, where she has broken news on companies such as Starbucks and McDonald’s. She frequently discusses her reporting on ...