Transport Neutral Encapsulation Format
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|subcat=E-Mail, newsgroups, and forums | |subcat=E-Mail, newsgroups, and forums | ||
|mimetypes={{mimetype|application/vnd.ms-tnef}} | |mimetypes={{mimetype|application/vnd.ms-tnef}} | ||
+ | |extensions={{ext|dat}}, {{ext|tnef}} | ||
}} | }} | ||
+ | '''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. |
− | + | == Software == | |
− | + | ||
− | == | + | |
− | + | ||
* [http://www.fentun.com/ Fentun]: Freeware Windows program to decode this attachment | * [http://www.fentun.com/ Fentun]: Freeware Windows program to decode this attachment | ||
− | * [https://addons.mozilla.org/en-US/thunderbird/addon/lookout/ Lookout]: Thunderbird addon to read TNEF | + | * [http://sourceforge.net/projects/tnef/ TNEF]: An open source TNEF decoder utility |
+ | * [https://addons.mozilla.org/en-US/thunderbird/addon/lookout/ Lookout]: Thunderbird addon to read TNEF (based on the above TNEF decoder utility) | ||
+ | * [http://www.eolsoft.com/download/ Winmail Opener] | ||
+ | |||
+ | == Sample files == | ||
+ | * http://libxad.cvs.sourceforge.net/viewvc/libxad/testfiles/MS-TNEF/ | ||
+ | |||
+ | == Links and references == | ||
+ | * [[Wikipedia:Transport Neutral Encapsulation Format|Transport Neutral Encapsulation Format (Wikipedia)]] | ||
+ | * [http://www.modemhelp.net/newsletter/email/winmaildat.shtml How to turn off winmail.dat attachments] | ||
+ | |||
+ | [[Category:Microsoft]] | ||
+ | [[Category:File formats with a distinctive filename]] |
Revision as of 15:47, 4 May 2016
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.
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