This page contains information on the CHM file extension (Compiled HTML Help File), a popular video file format

CHM CHM (eBook)

File extension .chm
Category eBook File
Description The CHM file format was developed by Microsoft and first released along with Windows 98 and the format continues to be supported. This file format superseded WinHelp. CHM files grew in popularity due to the fact that they are fully compatible with a web browser which can be found on all computers. The vulnerability of this file type has been highlighted widely due to the ability for certain controls to be executed by the file.
Actions
Technical Details A .chm file comprises of a number of HTML pages and an Index. The format supports 28 different language types. The file provides functionality such as compression, merge and search. Just like a HTML page, the file can be composed of a variety of tags and images to enrich the content of the help files.
Associated programs
  • Microsoft Reader
  • Beyond CHM
  • Mozilla Firefox
  • Internet Explorer
Developed by Microsoft
MIME type
  • application/vnd.ms-htmlhelp
Useful links

CHM Convert CHM file

Using Zamzar, it is possible to convert CHM files to a variety of other formats

  • chm to azw3 (Amazon KF8 eBook File)
  • chm to epub (Open eBook File)
  • chm to fb2 (FictionBook 2.0 File)
  • chm to oeb (Open eBook File)
  • chm to lit (Microsoft eBook File)
  • chm to lrf (Sony Portable Reader File)
  • chm to mobi (Mobipocket eBook)
  • chm to mp3 (Compressed audio file)
  • chm to pdf (Portable Document Format)
  • chm to pdb (Palm Media eBook File)
  • chm to pml (eBook File)
  • chm to prc (Mobipocket eBook File)
  • chm to rb (RocketEdition eBook File)
  • chm to tcr (Psion eBook File)
  • chm to txt (Text Document)
CHM Converter eBook