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. Winmail.dat contains all attachments and rich text message, and not all e-mail clients can recognize its format. It is the solution. Winmail Viewer Pro Edition is just the tool for the job. This app allows users to open .dat folders and to view, extract, share and save all contents. With Winmail Viewer Pro Edition’s user-friendly interface, anyone can overcome this frustrating technical issue in a matter of clicks. In addition, it also supports batch extraction of winmail.dat files directly into Download folder.

Winmail.dat Viewer Pro Edition for Expert is your last winmail.dat application you would ever need.

Opens .dat folders
• Opens TNEF "winmail.dat" files and list all attachments (RTF, TXT, HTML,PDF,etc) contained in it including email message.
• Double-click the attached files to open them, or drag and drop them on the desktop.
• Winmail Extractor to batch extract all attached files from "winmail.dat" files directly into your downloads folder.
• Simple and fast, decode and view winmail.dat file instantly without waiting.

View, Extract, Store, and Share
• Save one or all extracted attachments wherever you want.
• Simply Drag and Drop out from file list to save at target location.
• Quick Look or Open to view attached files into respective default applications.
• You can just select and copy-paste attachments to Finder.
• You can resend entire decoded email as it is with message and extracted attachments.

Easy to Use
• It only takes a few seconds to access your files

More file format support such as MSG, PST, XPS will be integrated in future versions.

Constant improvement of Winmail.dat Viewer Pro Edition is our promise to you. You will be continuously impressed by each free update equipped with new feature

If you want to thank our tireless team, please write a review or recommend Winmail.dat Viewer Pro Edition to your friends!
We're always here for you at


Version 2.2

Winmail.dat Viewer Pro Edition gets a fantastic update with enhanced TNEF engine and performance improvements.

・ Support for Dark Mode gives Winmail.dat Viewer Pro Edition a dramatic dark look. Toolbars and menus recede into the background so you can focus on your content. Requires macOS Mojave.
・ File list supports right-click menu: Copy, Share, Save to, Preview, etc.
・ Support files automatically jump to open the corresponding folder when Save As is completed
・ macOS Mojave compatibility.
・ Stronger. More stable. Better. Faster. More reliable.

If you want to thank our never-resting developers, please write a review or recommend Winmail.dat Viewer Pro Edition to your friends and teammates.

Should you have any further questions, please feel free to contact us at

Bewertungen und Rezensionen

4.6 von 5
9 Bewertungen
9 Bewertungen
Jawolllll ,


Dadurch, dass sich die Datei sofort aufmacht, gibt es endlich keine Schwierigkeiten, die Office - Mails auf dem Mac zu öffnen. Danke!

Ein großartiges Instrument, um die verrückte Scharte des Microsoft-Office auszumerzen!

Entwickler-Antwort ,

Thank you very much for your support. . If you need any help, please contact , Thanks again.

ion2904 ,


Das ist genau die Hilfe in der Not mit den nicht zu öffnenden Outlook - Dateien auf einem Apple, die mir fehlte. In Sekunden habe ich die richtigen Dateien und kann damit arbeiten. Ich bin begeistert. J. Erpenbeck

Entwickler-Antwort ,

Thank you very much for your support. . If you need any help, please contact , Thanks again.

janonmac ,

Does not work correctly

Especially calendar event updates will not be recognzed and will be shown as empty rtf file.

Entwickler-Antwort ,

Hi, Thanks for your support. Your feedback is very important to us, we will continue to improve the app. If you need any help, please contact Thanks again.


PDF Technologies, Inc.
1.9 MB

OS X 10.10 oder neuer, 64-Bit-Prozessor



Kennzeichnung: 4+
© 2014-2019 PDF Technologies, Inc. All Rights Reserved.
3,49 €


  • Familienfreigabe

    Wenn die Familienfreigabe aktiviert ist, können bis zu sechs Familienmitglieder diese App verwenden.

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