Learn how to sum values based on multiple criteria in a single columns. You probably know that you can use SUMIFS to sum values based on criteria from multiple columns. But there is also an easy way you can sum values if your criteria is in the same column.
Learn how to use Formulas and Functions in Excel. I'll show you an Excel trick that will make it easier to find Excel functions and use them correctly. You'll learn how to use SUM, COUNT, COUNTA, AVERAGE, MAX, MIN and also more complex functions like AVERAGEIFS.
With Excel 3D formulas you get to combine data from multiple worksheets into one summary sheet. This article includes a bonus Excel hack which shows you how to use wildcards in 3D reference formulas.