Winmail Opener helps you instantly open and view winmail.dat attachment.

Sometimes you got an email with an attachment named 'Winmail.dat', you don't even know what it is.

Actually if you receive an email message sent from a Microsoft email app such as Outlook or Microsoft Exchange, the message might include an attachment with "winmail.dat" in the name.

You don't need to ask the sender to resend the mail in plain text or HTML, simply open the winmail.dat file with Winmail Opener, you can view the original mail content and all the attachments instantly.

Key Features:
* Open winmail.dat file, lets you view, open or export files within the winmail.dat.
* Easy-to-use application, you can open a file, drag and drop files to it.
* Simple and fast, decode and view winmail.dat file instantly without waiting.

Ratings and Reviews

1.8 out of 5
5 Ratings

5 Ratings

Garbage x973528 ,

Ripped off

Totally doesn't work as advertised. Apple please remove or clarify that it does NOT open all attached files. Calendar files don't work. Only SOME files work.

If I could give zero stars I would but I guess it gets one for text and pictures working.

Doctaylor17 ,

Doesn't open any attachments

Complete waste of money. I hope they update this app soon because it definitely doesn't do what it's advertised to do.

Worm24 ,

Ripped off !!

Doesn’t open or do anything - Apple, please remove this app!! This is a waste of money & time !!


Gerald Ni
1.6 MB

Requires iOS 7.0 or later. Compatible with iPhone, iPad, and iPod touch.


English, French, German, Italian, Portuguese, Simplified Chinese, Spanish, Traditional Chinese

Age Rating
Rated 4+
© 2015 Lighten Software Limited


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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