what is the difference between .html and .htm extensions? is there any difference or just a way to distinguish.
I think there is any difference between .htm or .html. If there is anything different, throw some lights. Mime type are the same and no change in working.
One is 3-letter, the other 4 .htm was used by windows when it was only able to manage 3-letter extension files, no?
I think .htm was the extension created by Microsoft - it's stupid. I don't remember what the story was behind it, but I think that Microsoft software products defaulted web pages to save to the file without the "l". Technically there is no difference.
Actually both are used to denote a html file. Basically many times people get confused while making links to html files, if you made a file with .htm extension, you must create link with .htm extension only. It's good to stick with any of one
True though I found it easier to convert my all my index files to html. The only time I came into conflict with this extension was when I redesigned my casino site casinomax.net to make it friendly to search engines. I downloaded each page and in doing so it saved as .htm when I uploaded each (SEO modified) page back onto the host server I instantly realized the pathway issue. A quick change from htm to html via the cpanel html editor solved the problem. I think this extension is heading for IT extinction much the same way as the (www.) attribute is. ROOFIS
Other then the obvious, the letter "L," there's not much of a difference between the two extensions. Most, if not all, web browsers and servers will treat a file with an HTM extension exactly as it would a file with an HTML extension, and vice versa.