.MHTML File Extension
File TypeMIME HTML File
This file is saved in a binary format, which requires a specific program to read its contents.
Web page archive format saved from a .HTML file and encoded with .MIME encoding; includes resources linked from the Web page, such as images, Flash animations, Java applets, audio files, etc; can be opened and viewed without being online.
NOTE: Microsoft Word can save and open MHTML Web archives.