One of my first tasks as a WordPress developer was to make design changes to WooCommerce email templates and check that template. There is no default way for users to do this. To resolve that issue i’ve created this Preview E-mails for WooCommerce

I’ve been working on an extension for WooCommerce to preview email templates without having to manually send them.
It’s on Github.
It is now both on Github and I also have a plugin for this on the WordPress Repo https://wordpress.org/plugins/woo-preview-emails/

Basically What it does is add a Preview Emails section in the admin area via which you can choose the different email templates.

It works perfectly well for all the default email templates. For Bookings and Subscriptions check out the pro version : https://www.codemanas.com/downloads/preview-e-mails-for-woocommerce-pro/