About this app
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
Latest release
What’s New
Improved Winmail.dat, MSG and XPS file support. If you like Letter Opener, please consider leaving a review. That helps us a lot. Thanks!
Audience growth
Ratings growth
Baseline captured. Growth appears after the crawler observes a changed rating count.
Momentum comes from crawler snapshots for the tracked storefront. “Viral growth signal” means unusually fast recent rating gains; it is an indicator, not download data.
Price tracking
Price intelligence
- First observed Aug 15, 2026 · 6:53 PM Free
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