- 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).
- The only that displays the original message subject and body.
- And FREE!
Easily open winmail dat files on any device!
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» Online version
To open winmail.dat files on Mac, Linux, iPad, iPhone, Android and other mobile devices use the free online version.
Winmail.dat or ATT0001.dat attachments are TNEF encoded files sent by Microsoft Outlook and Exchange. Users with other e-mail clients (like Thunderbird or Lotus Notes) or platforms (like Android, Apple, iPad or iPhone) cannot natively read the winmail.dat files. For more information on TNEF files, see our Winmail.dat files section.
Important: Winmail.dat Reader is safe! It doesn't suffer from the BadWinmail Outlook security flaw.