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Have you ever had an attachment on your email that would not open?

Is it a winmail.dat file? Do you ever wonder why all the people who send these files to you send the same attachment? "Wow, Rob sent me a file called winmail.dat, and I can't open it. Wait Shirley sent me one too " The funny thing is that these are just shells that are encapsulating the original file while it is being mailed from one server to another. The Winmail.dat file is as a result of the compression of Outlook and the manner in which it is sent from that client. (some fun reading is here: https://discussions.apple.com/thread/3035481?start=0&tstart=0)

I have been unable to find a reason that Outlook has not moved form MIME style formatting (other than it is proprietary, and they want to keep things that way)
Anyway, I have found a working solution.
download this file:
save it to your applications folder.
2. Find a winmail.dat file and save it to your desktop.
3. Control click it to "get info"
4. Select "opens with" and choose the TNEF app
5. Select "change all"
Now when you receive an email with this attachment you can read the file.
Here is an example
[fvplayer src='https://getu2thetop.com/wp-content/uploads/2014/05/Winmaildat.mov' width=640 height=452 autoplay=false splash='https://getu2thetop.com/wp-content/uploads/2014/05/Screen-Shot-2014-05-07-at-2.51.00-PM.png']

Winmaildat

Play