Winmail.dat Opener & Viewer
Open Winmail.dat Files Easily
Free · In‑App Purchases
NEW: 3-day free trial on every plan. Open winmail.dat, MSG & XPS files instantly — no payment upfront. Try it risk-free, cancel anytime.
CAN'T OPEN THAT WINMAIL.DAT FILE? WE'VE GOT YOU COVERED.
You received an email from someone using Microsoft Outlook, and instead of the attachment you needed, you got a mysterious "winmail.dat" file. Frustrating, right? Winmail Opener solves this problem instantly.
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WHAT IS WINMAIL.DAT?
When Outlook users send emails using Rich Text Format (RTF), their attachments and formatting get bundled into a file called "winmail.dat" or "ATT00001.dat" - which Apple Mail, Gmail, and other email apps can't open. Winmail Opener decodes these files so you can access your documents, photos, and more.
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100% OFFLINE & PRIVATE
Your files NEVER leave your device. Unlike web-based converters that upload your sensitive documents to unknown servers, Winmail Opener processes everything locally on your iPhone, iPad, or Mac. No internet connection required. No data collection. Just pure privacy.
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KEY FEATURES
- Instant Extraction: Open winmail.dat files in seconds
- Complete Privacy: All processing happens on your device
- Works Offline: No internet required for core functionality
- Multiple Formats: Also opens MSG and XPS files
- Calendar Events: Extract iCal appointments and add to Calendar
- Contact Cards: Extract vCards and add to Contacts
- Preview Files: View images, PDFs, and documents before saving
- Easy Sharing: Export attachments via Share Sheet
- Universal App: Works on iPhone, iPad, and Mac
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HOW IT WORKS
1. Receive an email with winmail.dat attachment
2. Tap the attachment and choose "Open With" then Winmail Opener
3. See all extracted files in a clean, organized list
4. Preview, save, or share any attachment
5. Done! That's it.
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SUPPORTED FILE TYPES
- Winmail.dat (TNEF from Microsoft Outlook)
- MSG (Outlook message files)
- XPS (XML Paper Specification documents)
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FREE TO TRY
Open 10 unique files for free - no feature restrictions. If you need unlimited access, unlock it with a single one-time purchase. No subscriptions. No recurring fees. Pay once, use forever.
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DESIGNED FOR APPLE
Built with Apple's design principles in mind. Clean interface, system-adaptive dark/light mode, and seamless integration with Share Sheet, Files app, and drag-and-drop on Mac.
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PERFECT FOR
- Business professionals receiving corporate emails
- Legal and finance teams working with Outlook clients
- Anyone frustrated by "winmail.dat" attachments
- Mac users who receive emails from Windows/Outlook users
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Stop being blocked by incompatible email formats. Download Winmail Opener today and access your attachments instantly.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Try any plan free for 3 days — no payment due until your trial ends. We've completely redesigned the paywall experience so getting started is smoother than ever.
New
• 3-Day Free Trial: Every subscription plan now includes a free trial. Open and extract your winmail.dat, MSG, and XPS files for 3 days before you're charged a thing.
Improved
• Redesigned paywall: A cleaner, more transparent subscription screen with all pricing, trial details, and plan benefits visible at a glance.
• Smarter plan cards: Trial badges appear automatically on eligible plans — if a plan has a free trial, you'll know instantly.
• Dynamic content: Subscription details now update in real time from the App Store for more accurate pricing in your region.
The developer, OMER FARUK KIZILTUG, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- OMER FARUK KIZILTUG
- Size
- 20.2 MB
- Category
- Utilities
- Compatibility
Requires iOS 14.0 or later.
- iPhone
Requires iOS 14.0 or later. - iPad
Requires iPadOS 14.0 or later. - iPod touch
Requires iOS 14.0 or later. - Mac
Requires macOS 11.0 or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Winmail Weekly $1.99
- Winmail Lifetime $19.99
- Winmail Annual $12.99
- Copyright
- © 2026 OMER FARUK KIZILTUG
