How To Export Your Contacts
To export your address book, log in to your account and click on the account icon, located next to the search icon at the top-right corner of any page. Then, select Contacts from the drop-down menu (or use this link) and locate the Export option at the top of the page.
Upon clicking the Export button, your browser will automatically download a CSV file containing all your Contacts. This action will not remove any contact information from your Address Book; it will simply duplicate your contacts into a spreadsheet.