Transport Neutral Encapsulation Format
From Just Solve the File Format Problem
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* [http://www.eolsoft.com/download/ Winmail Opener] | * [http://www.eolsoft.com/download/ Winmail Opener] | ||
* [https://github.com/Yeraze/ytnef ytnef]: TNEF command-line extractor | * [https://github.com/Yeraze/ytnef ytnef]: TNEF command-line extractor | ||
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== Sample files == | == Sample files == | ||
* http://libxad.cvs.sourceforge.net/viewvc/libxad/testfiles/MS-TNEF/ | * http://libxad.cvs.sourceforge.net/viewvc/libxad/testfiles/MS-TNEF/ | ||
* https://github.com/koodaamo/tnefparse/tree/master/tests/examples | * https://github.com/koodaamo/tnefparse/tree/master/tests/examples | ||
| − | * | + | * {{DexvertSamples|archive/tnef}} |
== Links and references == | == Links and references == | ||
Latest revision as of 10:52, 12 April 2024
Transport Neutral Encapsulation Format (TNEF) is a proprietary format used by Microsoft mail software to encode attachments and rich text, instead of more standards-compliant methods such as MIME.
It is usually implemented as an attachment called winmail.dat or win.dat, which Microsoft programs know what to do with, but is a useless and confusing attachment to everybody else (unless they use one of several programs and plugins that have been devised to help non-MS-ers cope with it). When saved elsewhere as archives or samples, sometimes the .tnef file extension is used.
Contents |
[edit] Identification
Such mail files start with signature bytes 0x78 0x9f 0x3e 0x22.
[edit] Software
- Fentun: Freeware Windows program to decode this attachment
- TNEF: An open source TNEF decoder utility
- Lookout: Thunderbird addon to read TNEF (based on the above TNEF decoder utility)
- Winmail Opener
- ytnef: TNEF command-line extractor
- XAD framework
[edit] Sample files
- http://libxad.cvs.sourceforge.net/viewvc/libxad/testfiles/MS-TNEF/
- https://github.com/koodaamo/tnefparse/tree/master/tests/examples
- dexvert samples — archive/tnef
