MHT / MHTML File Extension
MIME HTML Web Archive Format
Overview: What is MHTML File Extension
MHTML, sometimes referred as MHT, stands for MIME HTML is a single file in which entire webpage is archived. When one saves a webpage as MHTML format, this file extension will contain HTML code, images, audio files, flash animation etc.
MHTML (Multipurpose Internet Mail Extension HTML) file format is also known as web page archive format.
Quick Facts about MHT/MHTML File
- Not only is the file contains html code for web page but also all the sub-resources (such as images, Java applets, audio files, Flash animation).
- Internet Explorer and Opera support this file by default.
- In order to save webpage as MHTML file extension in Mozilla Firefox, users need to install an add-on, named Mozilla Archive Format and another one is UnMHT.
- To archive a webpage as MHT/MHTML in Chrome browser, you need to enter chrome://flags/ in the URL field. Then scroll down, go to Save as MHTML option and select Enable.
Application Category
Web Files
Primary Protocol
Multipurpose Internet Mail Extension
Technical Specifications
MIME Types
multipart/relatedapplication/x-mimearchivemessage/rfc822File Signature Details
Hexadecimal Signature
46 72 6F 6D 3A 20 3C
Applications Supported
Internet Explorer
Google Chrome
Firefox
Safari
ACCESS NetFront
GNOME Web
Opera / Vivaldi
MHT Viewers
How to open and View MHTML file
The MHT/MHTML file can be opened using Google Chrome, Mozilla Firefox, Safari and more. The internal structure or data inside MHTML file can be seen using any text editor like Notepad++, Atom and more.