Winmaildat Opener 4+

Maklabu GmbH

    • 3.6 • 75 Ratings
    • Free
    • Offers In-App Purchases



Winmail.dat Opener is a free app to open those common 'winmail.dat' attachments. This app is free of charge and fully functional, giving you access to the files without any need for further in-app purchases. The optional in-app-purchase will remove ads.

Our app registers as a handler for .dat files. It is launched when you tap to open the "winmail.dat" attachment, enabling you to see a list of its contents. You can then preview, resend or print the contained files or save them to an album.

This app will extract the winmail.dat on your phone or tablet, it does not require an Internet connection for this process. As our app is ad-supported, it has to ask for permission to access the Internet, despite the fact that the actual extraction process does not require an Internet connection.

Kindly note that not every file ending with .dat is a winmail.dat file. So, before submitting a one star review stating that our service didn’t work, please ensure that your file is indeed a winmail.dat file and not one of a hundred different file types with a .dat extension.

What’s New

Version 1.6

Optimized for iOS 17

Ratings and Reviews

3.6 out of 5
75 Ratings

75 Ratings

NE Yanqui ,

Works but some issues

The app opens winmail dat files but groups them all together so that it is somewhat difficult to find them. They are numbered so the highest number is usually the last in but trying to find files afterwards can be challenging. Otherwise, good.

GiuliaPal ,

Best free winmail opener

I tried 3 free winmail openers that failed to open the winmail attachment. This is the only one I came across that accomplished that task. Exactly what I needed, thank you. And the ads don’t matter if you are using it for just one file every once in a while. Again thank you for creating an app that does what it says!!

Petie Ravioli ,

Works great !

Running Winmaildat Opener on an iPad Air 1st Gen, iOS 9.3.5 - it *totally* delivers the goods with no fuss, no mess, no bother. It was an easy decision to contribute 99 cents to the author of this app rather than look at ads to use it for free. It's a steal, worth every penny. Well done. Thanks for a great, easy to use product!

App Privacy

The developer, Maklabu GmbH, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Not Linked to You

The following data may be collected but it is not linked to your identity:

  • Identifiers
  • Usage Data
  • Diagnostics

Privacy practices may vary, for example, based on the features you use or your age. Learn More

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