How to Sum the 3 largest or smallest values in a set in Excel

Looking for a primer on how to create and work with array formulas in Microsoft Office Excel? You've come to the right place. In this free video tutorial from everyone's favorite MS Excel guru, YouTube's ExcelIsFun, the 5th installment in his series of Excel array formula series, you'll learn how to create array formula for adding the 3 largest or smallest values in a data set.