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Informations about the HTM filename extension and the file formats associated with it

We collected the information you should know about the .htm filename on this page. If you were sent a(n) .htm file in an e-mail, but you don’t know what to do with it, then you can find help here. We strive to suggest free, open-source applications that are available to everyone for the file formats.

1 filename extension(s) are in our database

.htm - Hypertext Markup Language Document

The HTM file is a Document file, which is connected to the Hypertext Markup Language Document according to our registry. With the adequate settings, the Hypertext Markup Language Document (.htm) files can be opened or converted with the help of Internet Explorer.

Format description:
HTM format
Internet Explorer
Magic string:
- / -
Related links:
Macromedia Dreamweaver
Mozilla Firefox
Related extensions:
Microsoft ClickOnce Application Reference
Atom Syndication Format File
Cascading Style Sheets
Microsoft RSS Feed Store
HTML Component
Internet Explorer Converter

Important! Programs other than the ones listed above may also use the .htm file extension. Even harmful programs can create files with the .htm extension to store data in them. Always be careful with .htm files coming from unknown sources. Don’t open executable files that arrived in mails, even if you know the sender.

The .htm file can’t be opened on your computer?

If the program necessary for opening the .htm file is installed properly on your computer, then the quickest and simplest way to open the .htm file is to double-click on the file’s name. If that doesn’t work, then the right software probably isn’t installed on your computer.

While opening the .htm file, you may receive an error message from the associated application, this can be caused by the following:

Incorrectly given .htm extension

The .htm filename extension can be given incorrectly sometimes. The cause of the error could be a mistake or a simple typo. We found the following incorrectly given filename extensions that are the most frequent in the case of .htm files.

btm, utm, tm, ntm, htl, ht, hmt, hhm, gtm, ttm, thm, mtm, htk, hrm, hm

Maybe you’re not even looking for the .htm file extension?

It’s possible the the file’s extension was given incorrectly. Below, we list some filename extensions that are similar to the .htm extension. It’s possible that the one you’re looking for is among them.

4DOS Batch File
ForeUI Theme Data
HTL Source
HighMAT File
Bioware Aurora Store Data
CFX Mesh File

Associated applications

The Windows operating system stores information about the applications associated to the file extensions in the registry database. The associations can be queried or modified in the Command Prompt window with the "assoc" command.

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We gladly accept application suggestions, but our primary goal is to suggest reliable, open-source applications that can be freely distributed to the users.

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