1 Answer

How to Open an HTM File:

The easiest way to open an HTM file is to double-click on it and let your PC decide which default application should open the file. If no program opens the HTM file then you probably don't have an application installed that can view and/or edit HTM files.

Warning: Take great care when opening executable file formats received via email or downloaded from websites you're not familiar with. See my List of Executable File Extensions for a listing of file extensions to avoid and why.

Any web browser, such as Internet Explorer, Firefox, Chrome, etc. will open and properly display HTM files. Many programs also exist that are designed to make editing and creating HTM files easy. Jennifer Kyrnin, the About.com Web Design / HTML Guide, has an excellent list of HTML editors on her site.

http://pcsupport.about.com/od/fileextensions/f/htm-file.htm