REDUCE allows you to iterate through your data, building your result step-by-step, in the same way a loop operates in a ...

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 ...

Microsoft Excel 2010 provides a formula for calculating the average value from multiple worksheets in a workbook. Before you apply this formula, check that each worksheet is formatted the same way.