woocommerce email template preview shows in plain text instead in html

Question

In WooCommerce > Settings > Emails there is a section "Email Template" with the following text:

"This section lets you customize the WooCommerce emails. Click here to preview your email template."

When I click on the link, preview shows in plain text, not HTML.

Does anyone have an idea how can I make it show in html format?

Basic server info and WP info:

centOs 7
WC Version: 2.6.11
WP version: 4.7
Server Info: nginx/1.10.2
PHP Version: 5.4.16

Thanks

Answer 1

In this same setting page (within this "emails" setting tab), you have just before the list of all available notification. You need first to "configure" settings for each notification changing content/type from text/plain to text/html (or multipart/alternative for both of them).

For example for complete order email notification :

Then "Save changes" …