Always have trouble opening Winmail.dat files from Microsoft Outlook senders on your Mac?

Winmail Explorer is a clean and intuitive viewing tool that helps you access your Winmail.dat files.

Major features:

- Show and open all Winmail.dat attachments and other TNEF-encoded files
- User-friendly and efficient design: drag and drop to open multiple Winmail.dat files at once
- Preview: Quick Look the content of your attachments

If you have any technical enquiries, please feel free to contact us at

What’s New

Version 1.0.4

Fixed issue on opening some winmail.dat files

Ratings and Reviews

1.0 out of 5
3 Ratings

3 Ratings

Name Already Taken Three Times ,

Doesn’t seem to work

Doesn’t work on winmail.dat files I’ve tried. Back to using TNEF’s Enough I suppose.

Annnnnnnnnnnnnnnnnnnnnnnnnnnnn ,

Easy and fast!

Drag in the files and worked.

RJmike013 ,

The best

It'll save you a lot of time, get it!

App Privacy

The developer, GrandSoft Ltd., has not provided details about its privacy practices and handling of data to Apple.

No Details Provided

The developer will be required to provide privacy details when they submit their next app update.


  • Family Sharing

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

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