What file type is htm?
html is the abbreviation of Hyper Text Mark-up Language, that is, hypertext mark-up language, which is the description of WWW Language, that is, Web page file.
Regarding HTM, in fact there is no essential difference between HTM and HTML, just to satisfy the disk operating system (DOS) can only recognize three-digit file namesJust, because some old systems (win32) cannot recognize four-digit file names, some web servers require that the last l of index.html must be removed. (Because html cannot be recognized, only htm can be recognized).
MSIE can automatically identify and open these files, but the web address must be completely corresponding when writing it. That is to say, index.htm and index.html are two different files, corresponding to different addresses. It is worth mentioning that UNIX systems are case-sensitive. If they do not match, it may report that there is no file or the file cannot be found.
Current operating systems already support long file names and also support long suffix names. Therefore, if you create a new website now, you can set the web page suffix to ".html" to enhance the readability of the file name.
Recommended learning: html tutorial
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