MHT File Documentation

Overview

Feature Value
Format Name MHTML (MIME HTML)
Extension .mht, .mhtml
MIME Type message/rfc822
Developed by World Wide Web Consortium (W3C)
Format type Web page archive format
Compression No, but individual resources can be compressed
File Structure Single file for multiple web resources
Encoding Base64, Quoted-Printable
Compatibility Supported by major web browsers but may require configuration
Characteristics Stores HTML, CSS, JavaScript, and media files
Advantages Easy sharing and archiving of web pages in a single file
Disadvantages Potential security risks from embedded content
Main use Archiving and sharing complete web pages
Editable Yes, with appropriate software
Security Can contain malicious code if not properly inspected
Indexing Difficult to index content by search engines
File comparison Direct binary comparison is difficult due to potential changes in encoding and formatting
Creation tools Web browsers, specialized software
Viewing tools Web browsers, file viewers, text editors
Standardization No formal standard, but broadly supported