Users sign up to receive newsletters from you on your site. If you are using our newsletter sign up form and not a 3rd party form then every record gets added to the subscribers list. This also includes shoppers that opt in to receive your newsletters. So keep this in mind as you are composing your newsletters that your audience may not just be your locals but customers from around the world.
To export your list of subscribers simply got to Components >> Letterman >> Subscriber Management
Next just simply click on the Export Subscribers button.
This will export the list to a CSV file which can be opened with Microsfoft Excel or OpenOffice Calc.