Question

what is the file name extension of an html file​

Answer 1

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An HTML file is nothing more than plain ASCII text, but all HTML files must have a special file extension for web browsers to recognize them. This extension is either . htm OR . html. The reason why there are two possible extensions goes back to the early days of the web.

Answer 2

Answer:

. htm OR . html

Extensions tell your computer which application created or can open the file and which icon to use for the file. For example, the docx extension tells your computer that Microsoft Word can open the file and to display a Word icon when you view it in File Explorer.