How to Prevent duplicate entries in an Excel spreadsheet
Love Microsoft Excel? This clip contains a tip that just might induce you to. With this free video tutorial from ExcelIsFun, the 41st installment of his "YouTubers Love Excel" or YTLE series of free video MS Excel lessons, you'll learn how to use a true/false formula with the COUNTIF function to prevent duplicate entries in a list. Learn to love digital spreadsheets more perfectly with the tricks outlined in this free Microsoft Office how-to.