It is not possible to export currently stored records from device, but if device is sending data to the server it will delete all sent records and will not store them internally. On the server side data should get stored on the database from which if your platform enables you, you should be able to extract it to csv or similar format with relevant data.
If there are any questions regarding this process you can contact your sales manager. If you don't have any contacts with our Sale managers, please contact with them on our official website https://teltonika-gps.com/ and click on the "Contact Us" button. When you will click, please fill the form and submit it. Note: as a topic, please choose "Vehicle telematics". Or you can send an e-mail with description of your situation to email@example.com.