Q. I sometimes receive e-mail messages with a “winmail.dat” file attached that I cannot open. Why does this happen, and what can I do to fix it? A. The winmail.dat file usually appears because various ...

Letter Opener converts winmail.dat attachments on the fly, so you can actually see and use the attachments the sender intended you to have. [Editor’s note: The following review is part of Macworld’s ...

If you've ever received a forward from an Outlook user in Mail.app containing an attached winmail.dat file, you probably scratched your head wondering why this strange file ended up in your inbox and ...

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 ...

Getting your Trinity Audio player ready... Q: Most of my e-mails from work come with winmail attachments. I have tried to open these files through multiple different programs, without success, on ...

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 ...

A friend has recently sent me a Microsoft Word attachment that arrived in my mailbox as winmail.dat, which I am unable to open. Janet Winmail.dat files were created by Microsoft to carry formatting ...

We’ve all seen mysterious .dat file attachments in our inboxes from time to time. In most cases the .dat attachment originates in Microsoft Outlook, which produces outgoing messages using a slightly ...

I have a client that is trying to send word docs to two different companies. Those companies get winmail.dat attachments instead of the .doc file. I have went in and sent the .doc to my gmail account ...