Looking to open those frustrating Microsoft Outlook MSG, OFT, and Winmail.dat files on your Mac? We've got you covered.

MSG files are often generated by the PC version of Microsoft Outlook. This proprietary format is easily read on other PCs, but it is unrecognizable on Macs - even if you are using Microsoft Outlook for Mac or Apple Mail. MSG Viewer for Outlook works like magic by converting the unrecognizable format into the email that your friend or coworker intended to send you - and it all happens in a split second.

With this easy-to-use program, you'll be able to open all of those MSG files seamlessly in your favorite Mac email clients. Batch processing and conversion of Outlook MSG contacts (.vcf) is also supported.

The free version only converts selected portions of the MSG file. The licensed version (available via in-app purchase) activates all features, including complete conversion of MSG files and batch processing.

What’s New

Version 3.99.2

- Updated alerts if app was previously registered
- Minor UI updates
- Fixed handling of Winmail.dat files (specific cases)
- Fixed restoring/entering licenses when application was run by double-clicking a file

Ratings and Reviews

anonymouse3845398475 ,

Helps me deal with absurdly ridiculous forms of communication

Some of our clients send attached .msg files instead of just, you know, sending an e-mail. This helps all of us at the office deal with antiquated file types used only by technologically-illiterate individuals.

bsdjunkie ,

Works well

Just installed it today and tried it. Did not install the ‘preview’ component off of the web, but just dragging and dropping a .MSG file to the viewer window did work! Nice to have something handy like this.

Gordon1468 ,

I thought this was free. Not!

You wil end up getting prompted to pay a very hefty fee for a license after using it a few times. I have never had another App Store app do that. They have always been up front on whether you have to pay or not. So I did some additional web searches and there are much better options that do the same thing. Not good. Don’t buy.


Element26, Inc.
15.5 MB

OS X 10.9 or later, 64-bit processor


English, Arabic, Czech, Danish, Dutch, Finnish, French, German, Hebrew, Indonesian, Italian, Japanese, Korean, Norwegian Bokmål, Persian, Polish, Portuguese, Russian, Simplified Chinese, Spanish, Swedish, Traditional Chinese, Turkish, Ukrainian, Vietnamese

Age Rating
In-App Purchases
  1. License $18.99


  • Family Sharing

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