The Duplicate Master (add-in to delete duplicates in Excel)
I cannot find the web site or the program online. Luckily, I still have a copy. Attached. Tested only on Excel 2003. Not sure if it works on Excel 2007. Version 2.18 is the latest.
Installing The Duplicate Master
Download Duplicate Master.zip to your PC
Extract The Duplicate Master.xla and Duplicate Master.chm to a directory on your computer.
Start Excel, from the Tools menu, select Add-ins and then Browse to the directory where you saved The Duplicate Master.xla.
Select The Duplicate Master.xla and press Ok.
In the Add-Ins dialog box, place a check mark next to The Duplicate Master.
Excel will now display a new command under the Tools menu, The Duplicate Master V1.0.