How to Sum every nth value in Excel with SUMPRODUCT
New to Microsoft Excel? Looking for a tip? How about a tip so mind-blowingly useful as to qualify as a magic trick? You're in luck. In this MS Excel tutorial from ExcelIsFun, the 466th installment in their series of digital spreadsheet magic tricks, you'll learn how to SUM every nth value using SUMPRODUCT, MOD and ROW functions.