If some messages arrive from the Internet looking like scrambled eggs, then you need to save each one as a file, then decode it. This is much less of a problem with current versions of Microsoft Outlook than it was with older versions of Microsoft Outlook and Exchange Messaging.
There are two types of files that may need decoded: uuencoded messages, that for one reason or another did not get decoded by Outlook and winmail.dat files that result from using RTF message format.
The TNEF/winmail.dat decoder tools can be used by non-Outlook users to "crack open" winmail.dat files to recover attachments.
Utility to decode attachments sent by Outlook that arrive as Winmail.dat files because you sent in Rich Text Format.
Rot-13 Addin is Rot-13 encoder/decoder for Outlook.Free. Version: 22.214.171.124
Tool for Macintosh computers to decode the Winmail.dat attachment sent in Rich Text Format messages.
Winmail Opener is a small and simple utility that allows users to view and extract contents of TNEF-encoded messages (winmail.dat). Version 1.4 - Free.
Open, convert and save the files on winmail.dat email attachments sent by Microsoft Outlook and Exchange. Easy-to-use graphic interface (no command-line tool). Displays the original message subject and body. Free.
Includes UUencode, BinHex and MIME support, so you can extract attachments from messages that you've saved as files.
- If other people complain that your messages arrive with gibberish or a mysterious WINMAIL.DAT file, see Outlook is sending winmail.dat attachments to Internet addresses
- OL2000 Information About Outlook and Encoded Messages
Decoding Internet Attachments – A Tutorial