A daily updated filename extension database!

HTM file extension

The table below provides useful information about the .htm file extension. It answers questions such as:

  • What is the .htm file?
  • What program do I need to open a .htm file?
  • How can the .htm file be opened, edited or printed?
  • How can I convert .htm files to another format?

We hope you find this page helpful and a valuable resource!

1 extension(s) and 0 alias(es) found in database

✅ Hypertext Markup Language Document

Hypertext Markup Language Document .htm file icon
HTM file is a Hypertext Markup Language Document. HyperText Markup Language (HTML) is a markup language designed for the creation of web pages with hypertext and other information to be displayed in a web browser.
Category: Document files
Application: Mozilla Firefox
Mime-type: text/html
Magic number: -
Magic string: -
Sample: -
HTM aliases:
ht3, ht5, html, html5
HTM related links:
HTM related extensions:
Active Server Page

Extended HTML Template

PHP Script

Cascading Style Sheets

Compiled HTML Help

JSP Markup Language

Answer Wizard Index

Dreamweaver Web Template File

Microsoft Frontpage Theme Package

HTML Help Table of Contents

Other types of files may also use the .htm file extension.

🔄 .htm converters

The following softwares are capable of converting .htm files to other formats:

Gimp, OpenOffice.org, Microsoft Office Word

For example, using the softwares above, a .htm file can be converted into one of the following formats:

dxf, ott, alpha, im32, im8, xltx, wb2, xlm, dotm, xbm, sxm, pam, sxc, wmf, 123

🚫 The .htm file extension is often given incorrectly!

According to the searches on our site, these misspellings were the most common in the past year:

btm, gtm, hfm, hgm, hhm, hm, hmt, hrm, ht, htk, htl, htn, hym, jtm, mtm

Is it possible that the filename extension is misspelled?

We found the following similar file extensions in our database:

GPS TrackMaker Data
React JSX Template Method Data
Catalyst Translation Memory Data
4DOS Batch File
Humminbird Track Data
THM Desktop Macro Data
Polar Heart Rate Monitor Data
NinjaTrader Market Replay Data
YTGen Method Data
HFM.NET Configuration

🔴 Can't open a .htm file?

When you double-click a file to open it, Windows examines the filename extension. If Windows recognizes the filename extension, it opens the file in the program that is associated with that filename extension. When Windows does not recognize a filename extension, you receive the following message:

Windows cannot open this file:


To open this file, Windows needs to know what program you want to use to open it...

If you don't know how to set the .htm file association, check the FAQ.

🔴 Can I change the extension of files?

Changing the filename extension of a file is not a good idea. When you change a file's extension, you change the way programs on your computer read the file. The problem is, changing the file extension does not change the file format.

If you have helpful information about the .htm file extension, write to us!

Browser: Abbreviation Application Archive Audio Configuration Data Development Disk Image Document Ebook Font Game Data GIS Graphic Malware Multimedia Other Project Scam Unknown Video
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