Format
MHTML
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.
- Format encoding
- Text
- File extensions
-
mht,mhtml - Submitted by
- 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
- Description
- 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
-
V97
- Release date
- 1 October 2020
-
Added signature
MHTML: Signature developed based on suggestion and samples provided by The Church of Jesus Christ of Latter-day Saints.
-
Updated
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.
-
V60
- Release date
- 11 June 2012
-
Updated
Microsoft Web Archive: Existing signature refined through PRONOM Research.
-
V51
- Release date
- 15 July 2011
-
Added signature
Microsoft Web Archive: Signature submitted by Georgia Tech Research Institute, USA.