Question

What is the extension of HTML document​

Answer 1

Answer:

The extension of HTML document is .html or .htm

Explanation:

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Answer 2

Answer:

.htm or .html

Explanation:

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.

Windows file names have two parts; the file's name, then a period followed by the extension (suffix). The extension is a three- or four-letter abbreviation that signifies the file type. For example, in letter. docx the filename is letter and the extension is docx.