Transparently integrated with OS X, Cisdem DocumentReader makes opening winmail.dat files an easy thing. All you have to do is to either drag-and-drop the winmail.dat files onto DocumentReade, or just double-click the files. And then, the winmail reader will extract the embedded attachments, allowing you to save them or to open them in another application.
Have multiple documents to open? Cisdem WinmailReader will open and list all the files in list view in one window, saving you the trouble of constantly switching among different windows when opening multiple winmail.dat files simultaneously.
After adding your winmail.dat files, DocumentReader will show you a window similar to an email message with the typical From and Subject fields along with sent date, message body and attached files. You can preview those winmail.dat attachments with default applications and drag-n-drop to export single or multiple attachments.
Except for wimail.dat files, DocumentReader also helps open WPD, WPS, XPS, OXPS, VISIO, DjVu and PDF files. Learn more
Moreover, it's a all-in-one document converter: export to many formats, extract images and print documents, etc. Learn more