Winmail Viewer - Letter Opener is made and published by Letter Opener GmbH. AppBrain is an independent app data site and isn't affiliated with Letter Opener GmbH. The app name, icon, screenshots and description belong to Letter Opener GmbH and are shown as published on the App Store.

About Winmail Viewer - Letter Opener

Winmail Viewer - Letter Opener is an utilities app developed by Letter Opener GmbH.

What is the rating of Winmail Viewer - Letter Opener?

Winmail Viewer - Letter Opener is rated 4.75 out of 5 stars, based on 4.9 thousand ratings.

Is Winmail Viewer - Letter Opener free?

Winmail Viewer - Letter Opener is free. The app size is 52.31 MB. The latest version available is 17.1.1. The last update was on September 30, 2026.

What are the requirements for Winmail Viewer - Letter Opener?

The app has a content rating of Everyone. The app has been available on the App Store since December 2010.

Description by Letter Opener GmbH (from the App Store)

Open Winmail.dat, MSG and XPS files with just a tap.

ABOUT
A winmail.dat file or MSG file is an email from Microsoft Outlook that can not be read by other email applications. It needs to be converted for the content to be accessible.

Letter Opener does that with a simple tap!

With over 10 years experience (and a special dislike for winmail.dat files) we made sure that working together with Microsoft Outlook and Windows users can be simple and seamless.

FEATURES
- Open Winmail.dat and MSG files and convert appointments, notes, contacts etc. to iOS native formats.

- Get access to all attachments in Winmail.dat files.

- Export files to another app.

SUPPORT
We provide direct personal support, so don’t hesitate to contact us if you have any questions or comments: support@winmail.help

Thanks for helping us to keep improving Letter Opener!

TERMS OF USE
https://winmail.help/legal/terms

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Screenshots

Screenshots by Letter Opener GmbH, from the the App Store listing

4.75 · 4,936 reviews

Official page on the App Store

Alternatives to Winmail Viewer - Letter Opener

Changelog of Winmail Viewer - Letter Opener

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Developer information for Letter Opener GmbH

Letter Opener GmbH

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App Store Rankings for Winmail Viewer - Letter Opener

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Technologies used by Winmail Viewer - Letter Opener

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Winmail Viewer - Letter Opener