How to do offline export for Application Discovery Agent date?

We have a customer with security concerns, and who does not want the Application Discovery Service Agent to be able to access the internet. Can we export the collected utilization data from each server as excel or CSV file from the server itself, without using the AWS Console?

The FAQS says that this is possible:

The Discovery Agent can be operated in an offline test mode that writes data to a local file so customers can review collected data before enabling online mode.

Link: https://aws.amazon.com/application-discovery/faqs/

Can anyone confirm that this can be done offline without outside access to the server? If so, how?

Thanks in advance.