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 ...

Excel has a wide range of useful built-in functions, but that doesn't mean you should use them indiscriminately. One of the things you can do when Excel is lagging is examine certain formulas to ...