. What is the extension of a HTML file

Best Answer

Explanation: 

• It's a text report saved with the augmentation . html or . htm that contains texts and a few labels composed between "< >" which give the directions expected to arrange the website page.
• These labels are fixed and unmistakable and will be at present made sense of in the instructional exercises when applied and required.

Final Answer:

A HTML document is just plain ASCII text, however all HTML records should have an extraordinary document augmentation for internet browsers to remember them. This augmentation is either . htm OR . html.