How To: Create a sudoku puzzle in Excel with array formulas

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 242nd installment in their series of digital spreadsheet magic tricks, you'll learn how to create a sudoku puzzle using array formulas, the INDEX function with criteria and data validation.