Winmail.dat Opener for Windows 10

Used Winmail.dat Opener for Windows 10 for Windows?

The Download Now link directs you to the Windows Store, where you can continue the download process. You must have an active Microsoft account to download the application. This download may not be available in some countries.

Editors’ Review

Download.com staffMarch 12, 2026

Winmail.dat Opener provides a free solution for opening stubborn 'winmail.dat' attachments. This application unpacks TNEF files, granting access to original content and email bodies without requiring further in-app purchases for core functionality.

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Free

4.9

Pros
- Opens and extracts 'winmail.dat' TNEF attachments.
- Integrates with Windows Explorer context menu.
- Allows opening, copying, or sharing extracted content.
- Processes all files locally on the device for privacy.
- Pro version extracts original scrambled email body.
Cons
- Free version displays advertisements.
- Ad removal requires an in-app purchase.
- Email body extraction is a Pro feature.
- Does not process non-Winmail.dat files with .dat extension.