Winmail.dat Opener: Pro Reader

Optimized algorithms and improved stability for fast, reliable opening of winmail.dat, MSG and XPS files.

Tired of "free" apps that hide features behind $49.99 subscriptions? Or old tools that can't open XPS documents?

Winmail.dat Opener 2026 is the all-in-one solution for business professionals. It safely unpacks Outlook winmail.dat (TNEF) and .msg attachments and also works as a powerful XPS/OXPS viewer for iPhone and iPad.

Why choose us?

• XPS & OXPS viewer: open XML Paper Specification files directly, no extra converters.
• No subscriptions: one-time purchase of $0.99. Own it forever.
• Privacy first: 100% on-device processing. Your contracts and invoices never leave your phone.
• 2026 optimized: built for the latest iOS, supporting Dark Mode and Drag & Drop.
• Universal extractor: save photos, PDFs, Word, and Excel files from .dat files.
• Multilingual support upgraded and optimized.

Supported formats

• Winmail.dat (TNEF)
• Outlook Message (.msg)
• XPS Documents (.xps)
• OpenXPS Documents (.oxps)

How to use

1. Open your Mail app or Files app.
2. Tap the attachment (winmail.dat or file.xps).
3. Select "Share" and choose this app.
4. View, print, or save your document instantly.

We update regularly. If you have any issues, contact us at st67891@gmail.com.