We keep getting e-mail attachments in winmail.dat files, and can't open them. What's going on? Is there a utility that can extract the attachments from these?

Luckily there are a couple of tools that will let you work with winmail.dat files on your Mac with relative ease.

Many times when receiving mail attachments with the new Exchange-enabled Microsoft Entourage v.X from Windows users, you will get a winmail.dat file that is inaccessible under Mac OS X. Alan Sill ...

Q. I received e-mail from a relative that says it is in a winmail.dat file. When I try to open the file, I get a message that says something like: "You are attempting to open a dat file. They are ...

What is the deal with those winmail. dat files? I get them in my email all the time, and nothing seems to be able to open them.

But when I receive the e-mail, the PDF has been converted to a Winmail.dat file that my e-mail software can't read. However, if one of the other 80 people forwards the weekly e-mail to me, I ...

Letter Opener isn't cheap, and the utility vs. cost ratio is dependent on how many winmail.dat files you deal with on a daily basis. Prices range from $29.95US for a single license, to $179.95US ...

Is anyone else receiving winmail.dat attachments, instead of the real attachment since migrating to Exchange 2010? I've had MS give me 4 different kb's on it and none have resolve the issue thus ...

I was confused by your answer regarding winmail.dat. The file cannot be opened traditionally, at least to obtain what the receiver believes to be valuable contents. Rather, it's used internally by ...