Update May 2012: If you need to open winmail.dat files on your iOS device (iPhone, iPad or iPod Touch) try Winmail File Viewer which currently costs 99 cents in the iTunes Store. Update February 2017: In November 2015, an iOS version of TNEF Enough was released by the developer of TNEF Enough. Best Video Software for the Mac How To Run MacOS High Sierra or Another OS on Your Mac Best Graphic Design Software the Mac. Did not open winmail.dat attachments on windows 7.

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Winmail.dat Explorer is a free app to open those 'winmail.dat' attachments. This app is free of charge, giving you access to the original attachment files without any need for further in-app purchases. The optional in-app-purchase will remove ads and help fund further development of new features. You can open a file by using the context menu in the windows file explorer or you can use the built-in file picker to select a file. After extracting the content you can open it with an external viewer, save the contained attachments to a location of your choice or share the attachments via email. The free version is ad-supported. With an in-app purchase, you can upgrade to the ad-free Pro version. Kindly note that not every file ending with '.dat' is a winmail.dat (TNEF) file. So, before submitting a one-star review stating that our service didn’t work, please ensure that your file is indeed a winmail.dat file and not one of a hundred different file types with a .dat extension. If you are looking for an app for Windows 8.1 devices check out our Winmail.dat Explorer for 8.1 https://www.microsoft.com/store/apps/9NPL81JKT51J Privacy Information: We do not collect or resale any of your data. The files you open with Winmail.dat Opener are processed on your device. They are not sent over the internet. The files are stored in a temporary folder and will be deleted automatically by the operating system. The app requires the network permission to load ads for the free version. The network permission is not used for any other functionality.

When people send messages from incorrectly configured Microsoft Outlook email clients, a file attachment called winmail.dat may be added as an attachment to the message. This file contains formatting information for messages that use Microsoft's proprietary TNEF standard and any attachments sent with the original message. The file is not recognized by other email clients. Because of this, any attachments sent with the original message are not displayed in Thunderbird's message pane.

If you try to open winmail.dat, you will probably be prompted to specify the application that should be used to open the file. Because this file is in a Microsoft proprietary Outlook/Exchange format, you may not have an application installed that can decode this file and display it. Even if your system is capable of displaying the file, it does not contain any useful information.

To prevent this file from being attached to messages, the sender of the message (or their system administrator) can configure various options as described in this Microsoft Support article.

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Free mobi reader for mac. There is also a Thunderbird add-on called LookOut which tries to decode the TNEF attachment (winmail.dat) and display the original attachments in Thunderbird's message pane. This add-on is not provided or supported by Mozilla and its compatibility with future versions of Thunderbird is not assured. The best solution is to contact the message sender and inform them that their copy of Outlook is incorrectly configured as suggested in the Microsoft Support article.