Winmail.dat Unpack is a tool that helps you open one or multiple winmail.dat files simultaneously. This simple, snappy and efficient program makes extracting attachments easy for reading and other purposes.

What is Winmail.dat?

Winmail.dat attachments are essentially TNEF-encoded files delivered by Microsoft Exchange and Outlook. If you’re on a Mac or use other email clients, such as Lotus Notes or Thunderbird, you cannot read these winmail.dat files natively. Winmail.dat Unpack opens, converts and saves these winmail.dat attachments. The tool would display the subject and body of the original message. Not to mention, the graphic interface is simple and straightforward, and there is zero command line tool.

For MS Outlook Users

Winmail.dat Unpack would come in extremely handy if you receive or send email in older MS Outlook versions, such as 2000 or 97. This tool lets you see and extract contents from Outlook messages seamlessly. In case you weren’t aware, the rich-text message attachments and contents from the Outlook program aren’t compatible with many email clients currently in use. The tool has a conventional winmail.dat unpacking tool look and feel, and has drop-down menus and complete support for drag-and-drop functionality. This makes moving attachments and text from an email message to a particular location quite straightforward. Also, the small file size ensures your computer’s disk or memory space isn’t eaten into by much.