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.

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.