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 697th installment in their series of digital spreadsheet magic tricks, you'll learn how to create a column of 1s and 0s (ones and zeroes) where 1 indicates the first occurrence and 0 indicates any remaining duplicates.