How to convert eml file format to html using Mozilla Thunderbird program?

Do the following steps:

+ Download and install Mozilla Thunderbird at
https://www.mozilla.org/en-US/thunderbird/.

+ Double-click to open the eml file using the installed Mozilla Thunderbird program.

+ Click the Forward button. This forward button is at the top right corner.

+ Select Menu > File > Save as > File. "Save Page As" frame will be popped up.

+ Change the "Save as type" drop down textfield  to HTML Files (*.html;*.htm;*.shtml;*.xhtml).

+ Click Save. That's all for now.