Winmail Reader is ultimate tool for reading 'winmail.dat' attachment files. 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. Cisdem WinmailReader for Mac - 2.0.0: Cisdem WinmailReader for Mac can open winmail.dat files and preview or save the attachment. It is capable of previewing or saving the mail’s attached documents too. To open a winmail.dat file on your iPhone, iPad, iPod touch, or Mac, follow these steps:Ĭisdem WinmailReader is a really useful app that can help you to open winmail.dat files that Apple Mail cannot recognize. The winmail.dat file might not contain any useful information or it might contain a document or other file. This happens when the sending app uses Transport Neutral Encapsulation Format (TNEF).
In other email apps, it might appear as a MIME section named application/ms-tnef.
The file doesn't appear in the sending app, but it does appear in Mail. Messages sent from older versions of Microsoft email apps, like Outlook or Microsoft Exchange, might include an attachment with winmail.dat in the name.
