how do I edit the content of emails?

[investments]

For example, I want to change the text in the email that is sent when a premium membership ends. I found the file premium_end_email.html but I don't know where to go to edit the actual text content. Thank you for any help you can offer.

 

[Basti]

It works the same way as i replied in your other thread regarding the "main_featured" phrase