**** Launch Special Offer for a Limited Time! Reg Price: $19.99 ****

You may receive winmail.dat files from your client or friend who are using outlook or exchange on your Mac. Winmail.dat contains all attachments and rich text message, and not all e-mail clients can recognize its format. Enolsoft Winmail Viewer is a smart letter opener for you to open, view, extract, and save the contents of winmail.dat files.

With Winmail Viewer, you can
√ Quickly open and view the Winmail.dat files on Mac.
√ You could open and read all the contents of a Winmail.dat file, including the text(RTF, TXT and HTML encode) and attachments.
√ Support tab view, you could open and read multiple Winmail.dat files at a time easily.
√ Open and preivew Winmail.dat single attachment file in external applications.
√ Extract and save files contained in the Winmail.dat attachment.
√ Display all attachment of the Winmail.dat files with two modes - Thumbnail and Information.
√ Simple and fast to use.
√ Yes, it works with OS X El Capitan(10.11)!

How to use Winmail Viewer:
1. Open Winmail.dat file: Just drag-n-drop the Winmail.dat files into program, you are able to open and view multiple Winmail.dat files at a time with tab view.
2. Preview attachments in Winmail.dat file: Double click the document that you want to preview, then it will be opened and you could preview contents.
3. Export and save the Winmail.dat file attachments: Drag-n-drop the attachments into the file folder that you would like to save, then it will be exported.

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What's New

Version 3.1.0

This update includes support for full screen viewing Winmail.dat file. Please kindly leave an updated review. We will read every comment and keep continuous to improve the app. If you have a suggestion, please message us at

1. Support full screen view.
2. Program window could be scale to the wanted size.
3. Fix the bug of reading html encode winmail.dat files.
4. UI optimized.

Ratings and Reviews

don’t waste your money


don’t worth the cost

Does the job


Its a little clunky, in that you can't drag and drop, not that I have noticed anyways, but it does the job and at $1.99 is very reasonable. There is an online winmail coverter, but it freezes my Mac 9 out of 10 times so this app is a way better alternative!

It opened the win mail.dat files fast


I hat those weird win mail.dat files fastened in the mails. It watsted a lot of time to figure out what it is and how to open it. I'm not a computer savvy, so you may know how annoyed I was when got the annoying winmail files. But this app helped me out. It opened the winmail.dat files fast and ran well on my old Macbook. Thanks a lot!


2.6 MB
Age Rating
Rated 4+
© 2011-2016 Enolsoft Co., Ltd. All Rights Reserved.


  • Family Sharing

    Up to six family members will be able to use this app with Family Sharing enabled.

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