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 622nd installment in their series of digital spreadsheet magic tricks, you'll learn how to to write an array formula using the SUMPRODUCT, MOD, IF, ROWS, INDEX, SMALL, and ROW functions that will retreive only even row values.