Easily open and view Winmail.dat, MSG, and XPS email files that are incompatible with most email clients. Convert embedded content like appointments and notes into native iOS formats, and access all attachments within these files.
17.0.0
March 19, 2026
Improved Winmail.dat, MSG and XPS file support. If you like Letter Opener, please consider leaving a review. That helps us a lot. Thanks!
MoreOpen Winmail.dat, MSG, XPS files
$19.99
Winmail.dat Premium
Access to attachments in winmail.dat files
This app allows you to open and view Winmail.dat, MSG, and XPS email files that are typically unreadable by other email applications. It converts embedded content like appointments and notes into formats compatible with your iOS device and provides access to all attachments.
Simply tap on the Winmail.dat file when you receive it, and the app will open it automatically. It then processes the file to make its content accessible, including any attachments or embedded items like calendar events.
The app is free to download and use for basic functionality. However, it offers in-app purchases, suggesting that some advanced features or unlimited usage may require a purchase.
The app can convert appointments, notes, and contacts that are embedded within Winmail.dat and MSG files into iOS native formats. This ensures that you can easily integrate this information into your device's native applications.
Yes, the app allows you to export the opened files or their content to another application on your device. This makes it easy to share the information or save it in a different format for later use.
