You can download any list from your account as either a .csv (comma delimited) or .txt (tab delimited) file. To do so, follow these steps.
- Log in to your account
- Click Lists
- Click the Actions link to the right of the list you want to download and click Download Members
- Check any optional filters (such as only bounces or unsubscribes)
- Select your output format (either .csv or .txt)
- Select the fields you would like to include in your file
- Click Submit
On the subsequent screen you will have either have a link to download results or, for larger lists, you will receive notice by email when you list is ready.