Suppose you have lot of raw data like phone numbers, email address, names, place-names, which may contain many duplicate data. To filter the unique data from duplicates, one way is to use a spreadsheet program like Excel (in several steps) or you can use this free program which is dedicated for this purpose. Copy the raw data to be filtered in the relevant text box and click "Find Duplicates" button. A progress bar will be shown and the unique data and duplicate data will be put to separate text boxes. The program requires .NET framework 3.5 to run