To export your contacts, stored inside the app, to a csv. file, simply log into the Admin Dashboard https://portal.switchitapp.com/login.php. At the top of the Contacts screen, click the button Select All, which will select all your contacts saved in the app. You can uncheck contacts you do not want to be exported. Next, simply click on the Export to CSV button and all your contacts will be exported to a csv. file.
Note: To ensure all your contacts are extracted, scroll to the bottom of the page and click the Load More button until all your contacts are displayed on the screen.