Letter Opener converts seamlessly winmail.dat file inside macOS Mail. The most popular mail application on macOS.
Try it 14-days for free.
We think you’ll love our apps - and provide email support directly from the people who build our apps to help you whenever you need it.
Available from our Store for $39.99.
Just click to Buy Now.
macOS Sierra 10.12, El Capitan 10.11 or Yosemite 10.10. See OS X support details. Click here to view the release notes.
Versions:
| macOS | Version 9 | Version 8 | Version 7 | Version 6 | Version 5 | Version 4 | |
| 10.12 | Sierra | Intel | |||||
| 10.11 | El Capitan | Intel | Intel | ||||
| 10.10 | Yosemite | Intel | Intel | Intel | |||
| 10.9 | Mavericks | Intel | Intel | ||||
| 10.8 | Mountain Lion | Intel | Intel | ||||
| 10.7 | Lion | Intel | Intel | Intel | |||
| 10.6 | Snow Leopard | Intel | Intel | Intel | |||
| 10.5 | Leopard | Intel | |||||
There’s no fuss with Letter Opener, no need to drag the winmail.dat file onto another application or call upon several programs to help you. Once Letter Opener is installed, you can forget about it.
Outlook compresses all of its attachments together into one winmail.dat file, leaving the rest of us scratching our heads as to what's inside. With Letter Opener the attachments appear like any others!
What a relief! This solves a recurring problem, that was a major irritation! It works flawlessly and seamlessly. You never even know it's there!
Tell us what you think!