Maximize your productivity
Never think about winmail.dat attachments again.
What is in Winmail.dat file?
A email message from Microsoft Outlook.
Letter Opener speaks your language.
Fully localized in Arabic, Cat, Chinese, Dutch, French, German, Hindi, Italian, Japanese, Korean, Portuguese, Russian, Spanish and Swedish.
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!
– Ted O.
Tell us what you think!
Meet the family.
Letter Opener for macOS
Open the Winmail.dat, MSG and XPS files with just one double-click!
Letter Opener for Windows
PC users can join in, too! The best Winmail.dat Viewer has finally arrived on Windows.
Letter Opener for iOS
Get full-featured winmail.dat viewing power for iPhone & iPad that doesn't feel like you left something important back at the office.