Always have trouble opening Winmail.dat files from Microsoft Outlook senders on your Mac?

Winmail Explorer is a clean and intuitive viewing tool that helps you access your Winmail.dat files.

Major features:

  • Show and open all Winmail.dat attachments and other TNEF-encoded files
  • User-friendly and efficient design: drag and drop to open multiple Winmail.dat files at once
  • Preview: Quick Look the content of your attachments

    If you have any technical enquiries, please feel free to contact us at

  • What's New
    This update includes some minor bug fixes and improvements

    Winmail DAT Explorer (com.grandsoft.winmail-dat-explorer) is a Mac software application that has been discovered and submitted by users of The latest version that our users have reported running on their systems is Winmail DAT Explorer 1.0.300.

    Operating System: Mac

    Minimum OS version: 10.7

    Copyright: (c)2015 GrandSoft. All rights reserved.