How to change CSS in email sent by Woocommerce?

Question

WordPress

Dear experts!
There is Wookomers, which sends letters, for example, with a new order. These letters clearly have a template that you would like to change, but how? Through the standard css editor, the style does not change, I did not find any mention of this in function.php either.
Where to change all this beauty?

Answer 1

The files are located here: \wp-content\plugins\woocommerce\templates\emails\