Letter Opener Alternatives

    Letter Opener is described as 'Open Winmail.dat, MSG and EML files. A new way to seamlessly view e-mail files without requiring an App download. Open E-Mail Files easily and securely'. There are four alternatives to Letter Opener, not only websites but also apps for Windows and Mac. The best alternative is winmaildat.com, which is free. Other great sites and apps similar to Letter Opener are Winmail.dat Viewer Pro Edition (Paid), Winmail.dat Reader (Free) and Winmail Opener (Free).

    This page was last updated Mar 17, 2021

      • FreeProprietary
      • Online
      Convert winmail.dat or ATT0001.dat files and extract the contained files into accessible, readable files.
    1. Winmail.dat files are in fact TNEF format (Transport Neutral Encapsulation Format) sent from the senders who are using Microsoft Windows Outlook (1997, 2000, 2003, 2007, 2010) or Microsoft Exchange.
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    2. Read, view, open, convert and save the files on winmail.dat email attachments. Easy-to-use. Graphic interface (no command-line tool). Often you can obtain winmail.dat attachment in gmail and then you need this is tool.
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    3. Winmail Opener is a small and simple utility that allows you to view and extract contents of TNEF-encoded messages (infamous winmail.dat).
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