Extract, view or open the contents of Outlook attachments winmail.DAT

Winmail Opener

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Download Winmail Opener 1.7

Winmail Opener

  -  412.75 KB  -  Freeware
  • Latest Version

    Winmail Opener 1.7 LATEST

  • Review by

    Juan Garcia

  • Operating System

    Windows XP / Vista / Windows 7 / Windows 8 / Windows 10

  • User Rating

    Click to vote
  • Author / Product

    Eolsoft / External Link

  • Filename

    winmail_opener.exe

  • MD5 Checksum

    1ed87e125e9f15cc7efff0839e3b41d6

Winmail Opener is a small and simple utility that allows you to view, open, or extract contents of TNEF-encoded messages (infamous winmail.dat). That means if you receive winmail.dat on your e-mail, with Winmail Opener you can view the rich text message contents and attachments embedded into this file.

You may receive winmail.dat files from the senders who are using Microsoft Outlook (97, 2000). Winmail.dat contains all attachments and rich text messages, and not all e-mail clients can recognize its format. Winmail Opener for PC is the solution.

Outlook Express does not display any message attachments if the TNEF-encoded file (winmail.dat) was received. If you are expecting some attachment, but do not see any, it still can be there. Download and install Winmail Viewer today!

Features and Highlights
  • Windows mail opener is absolutely free - no nag screens, no ads, no spyware, no time limit.
  • Supports RTF message text extraction.
  • You can drag-and-drop TNEF-encoded files into the app for opening them.
  • You can drag-and-drop decoded attachments from the program to any location for saving them.
  • Allows to operate with embedded attachments via standard system popup menu (Open, Open with, Copy, etc.)
  • Supports command-line mode for batch decoding.
  • Multilingual interface. (21 languages supported at the moment).
  • The executable has a small size and low system requirements.
  • Freeware for both commercial and personal use.


  • Winmail Opener 1.7 Screenshots

    The images below have been resized. Click on them to view the screenshots in full size.

What's new in this version:

- Fixed crash with "Run as administrator" on Windows 10
- Fixed crash when Data Execution Prevention (DEP) was enabled
- Improved menu look

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