The File Extensions Database

.HTM File Extension

  • Category: Web Files
  • Format: Text

What is an .HTM file?

.HTM is Hypertext Markup Language File

An HTM file is an HTML web page used by web browsers, such as Microsoft Internet Explorer and Mozilla Firefox. It is used to display and format text and images in a web browser. HTM files contain markup code in a plain text format.

HTM files serve the exact same purpose as .HTML files. The ".htm" extension arose with the use of Microsoft web development software, such as FrontPage, SharePoint Designer, and Expression Web.

HTM files are much less commonly seen than HTML files.

Programs that open Hypertext Markup Language File
File Viewer Plus
Microsoft Internet Explorer
Adobe Dreamweaver CC 2019
Adobe ColdFusion Builder
Microsoft Visual Web Developer
Microsoft Visual Studio 2017
Microsoft Notepad
Apple Safari
Mozilla Firefox
Adobe Dreamweaver CC 2019
Adobe ColdFusion Builder
Any text editor
File Viewer for Android

How to solve problems with HTM files

  • Associate the HTM file extension with the correct application. On :
    Windows: Right click on any HTM file and then click "Open with" > "Choose another app". Now select another program and check the box "Always use this app to open *.HTM files". Mac: Right click (or Ctrl-click) the HTM file, then click "Open with" > "Other...". Then choose another program and check the "Always Open With" box. Linux: Right click on the file, and select "Open with" and choose another program. iPhone: Tap the file. If you do not see an app to open the file, then tap Share "Share" and choose an app. Alternatively, save the file. Then open the Files app Files app. There long-press on the file, then release your finger. You will see a black menu bar. Then tap "Share" and select an app. Android: Tap the Settings icon on your smartphone, then tap on the Apps section. There tap the Options icon in the top right-hand corner of the screen to change the default apps.
  • Update your software that should actually open .HTM is Hypertext Markup Language File. Because only the current version supports the latest HTM file format. Search, therefore, e.g. on the N/A manufacturer website after an available .HTM is Hypertext Markup Language File update.
  • To make sure that your HTM file is not corrupted or virus-infected, get the file again and scan it with antivirus software.