Where are the email templates?

Where are the email templates that I can change under System/Messages, i.e. "customer_notification_email" for example. As a php file or in the database? I would like to transfer them from my test server to the main server without having to rewrite them all. 

Hello Uwe,

Thank you for submitting the question here. All of the messages are store into 2 tables #__eshop_messages and #__eshop_messagedetails. You can export that 2 tables from yuor test server and import them into main server to have what you have done.

I hope this is useful.

Sincerely, Giang