Winmail.dat Viewer - Letter Opener Lite
Letter Opener GmbH
About this app
- Age 10
- Updated Mar 19, 2026
- OS IOS / Android
Editor reviews
A fast, reliable tool to open and extract Outlook winmail.dat attachments. Winmail.dat Viewer - Letter Opener Lite decodes TNEF files so you can instantly access the real email content and attachments hidden inside. It integrates smoothly with your email and file apps, works offline for privacy, and helps you recover documents, images, PDFs, calendar invites, and contacts without needing Outlook.
Core features:
- Open and preview winmail.dat files in seconds with accurate TNEF decoding
- Extract and save attachments like documents, images, PDFs, ICS calendar events, and VCF contacts
- Seamless Share or Open In integration with your email and file manager for efficient workflows
Ideal for professionals and anyone who receives garbled winmail.dat messages, this utility boosts productivity and eliminates attachment headaches. Keywords: winmail.dat viewer, TNEF decoder, Outlook attachment opener, email utility, productivity, extract attachments
Screenshots
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How to use:
1. Download and launch the app; no sign-up required. If prompted, allow access to your files for saving and exporting.
2. From your email or file manager, select the winmail.dat attachment, choose Open with or Share, and pick Winmail.dat Viewer - Letter Opener Lite.
3. Preview the contents to see the email text and attachments such as documents, images, calendar invites, and contacts.
4. Tap Export or Save to store files locally, open them in another app, or share them with teammates or clients.