Format
ActiveMime Object
Summary
- Name
- ActiveMime Object
- Identifiers
- PUID: fmt/1915
- Format type
- Dataset
- Description
- ActiveMime is a Microsoft file format which can be used to encode Office Macros. It is undocumented but the file structure contains two parts. A header containing magic bytes and data about the file such as size and metadata. Followed by a zlib compressed data block.
- Note
- https://github.com/idiom/activemime-format
- File extensions
-
mso - Source
- National Library of Australia / National Library of Australia
Internal signatures
ActiveMime Object
- Note
- BOF; Offset: 0; Signature: 'ActiveMime'
Byte sequences
- Min Frag Length
- Absolute from BOF
- Offset
- 0
- Max offset
- 0
- Byte Sequence
4163746976654D696D65{2}01F0- Endianness
- None
Changelog
-
Updated in V121
- Release date
- 24 September 2025
ActiveMime Object: End byte corrected from 0F to F0. Submitted by National Library of Australia.
-
Added in V115
- Release date
- 15 November 2023
ActiveMime Object: Signature researched and samples provided by The National Library of Australia.
ActiveMime Object: Full entry added. Submitted by The National Library of Australia.