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Service phase: Beta

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Format

MHTML

Download XML

Summary

Name
MHTML
Identifiers
  • MIME: multipart/related
  • PUID: x-fmt/429
Format type
Aggregate
Description
AKA MIME Encapsulation of Aggregate Documents, such as HTML. This entry was previously named 'Microsoft Web Archive', however MHTML is not specific to Microsoft. MHTML is described by the IETF standard RFC2557.
File extensions
mht, mhtml
Source
The Church of Jesus Christ of Latter-Day Saints / The Church of Jesus Christ of Latter-Day Saints

Relationships

Has priority over

Internal signatures

MHT

Note
BOF offset up to 2048 (may need to be larger): MIME-(V|v)ersion: 1.0 or Mime-(V|v)ersion: 1.0 {1-2} Content-Type: multipart/related

Byte sequences

Min Frag Length
Absolute from BOF
Offset
0
Max offset
2048
Byte Sequence
4D(494D45|696D65)2D(56|76)657273696F6E3A20312E30{1-2}436F6E74656E742D547970653A206D756C7469706172742F72656C61746564
Endianness
None

Changelog

  • Added in V97

    Release date
    1 October 2020

    MHTML: Changed name from 'Microsoft Web Archive' as MHTML is not a Microsoft-specific technology. Added description. Disassociated Media type message/rfc822. Gave priority over HTML 5.

    MHTML: Signature developed based on suggestion and samples provided by The Church of Jesus Christ of Latter-day Saints.

  • Updated in V60

    Release date
    11 June 2012

    Microsoft Web Archive: Existing signature refined through PRONOM Research.

  • Added in V51

    Release date
    15 July 2011

    Microsoft Web Archive: Signature submitted by Georgia Tech Research Institute, USA.