Cisdem WinmailReader for Mac can open winmail.dat files and save the attachment. You can double-click to check the message and the attachment, or drag-and-drop to open multiple files, or use it as QuickLook to preview the attachment.
Winmail.dat files are in fact TNEF format (Transport Neutral Encapsulation Format) sent from the senders who are using Microsoft Windows Outlook (1997, 2000, 2003, 2007, 2010) or Microsoft Exchange.
Open Winmail.dat, MSG and EML files. A new way to seamlessly view e-mail files without requiring an App download.
Extract, view, share, and save the contents of Winmail.dat files sent from Windows Outlook or Exchange. Open Winmail.dat files with just a double-click.
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