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mac-winmailviwer-150You may have received an e-mail contained an attachment named as winmail. dat on your Mac in the past. And it couldn’t be opened directly. You can’t view it or even don’t know what it is. Well, don’t worry, this article will tell you how the Winmail.dat files generate and how to easily open and browse the attachments on Mac with the best Winmail Viewer.

Winmail.dat files are proprietary email files sent by Microsoft mail applications (Outlook, Outlook Express or Exchange) on a rich-text format called TNEF (transport neutral encapsulation format). Being a non-standard attachment format, users from other email clients (like Thunderbird or Foxmail) cannot natively read them. Mac users need to download a certain email viewer to open the .dat files. If you are the users of Mac OS X 10.6 and higher, then Enolsoft Winmail Viewer for Mac is your best choice. It’s utility, safe and super easy to use. These simple steps of 1-2-3 as follow will guide you to open and browse the odd Winmail files on Mac without effort.

Step 1, Download and install Enolsoft Winmail Viewer for Mac for Mac

Free download Enolsoft Winmail Viewer for Mac and follow its installation wizard to install it to your Mac.

Step 2, Easily open and browse Winmail.dat files on Mac

Run Winmail Viewer. You can just double-click the winmail.dat file in the mail attachment, or right-click to choose Enolsoft Winmail Viewer to open it. Then you can see the files contained in the winmail attachment are automatically listed in the main interface.

1-winmail file

Notice: Each single attachment file can be previewed with a proper external application existed on your Mac.

3-prieview files

Step 3, Extract and save the contained files for further use

Click “Save To” button to extract and save the contained files that in winmail attachment on Mac for editing or sending to others.

 4-save files

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