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 and Mr. Excel, the 26th installment in their joint series of digital spreadsheet magic tricks, you'll learn how to create random dates between upper and lower dates using the 4 different formulas that use functions such as RANDBETWEEN, RAND, INT and DATE.