This tool only works if you tested your DNA with AncestryDNA. AncestryDNA Helper adds extra functionality to the AncestryDNA website. The main purpose of this tool is to help you download a list of matching users and ancestor information. For more details on how it looks and how to use it watch the video that I made that is towards the end of this page.
Before you go on to watching the video let me just tell you that you need the Chrome browser for this tool to work, since it is an extension for Google chrome. You can get Google here: download here.
Once you have it installed it you need to install the extension for it, click on this link to install: AncestryDNA Helper.
After you have done those two things just go ahead and go over to Ancestry.com and go to the tab for DNA to start using the extra added benefits that this tool adds to AncestryDNA.