You can export all of your subscribers, or choose to export only certain lists, in just a few clicks.
1. Click your Subscribers tab on the left side of your dashboard.
2. Find the list you'd like to export, then locate the three dots all the way to the right. Click the dots and select Export contacts from the list.
3. A CSV will automatically download with your list of contacts including any additional information they've provided you with such as email, birthday, etc.
If you scroll all the way to the right on your spreadsheet, you'll also find a column where you can see all the inbox messages exchanged between you and that contact.