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 ...

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 ...

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 ...

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 ...

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 ...

Rich Formatting Support: TNEF preserves Microsoft-specific rich text formatting, including custom fonts, tables, and embedded objects. Exchange Server Default Behavior: Particularly in older Exchange ...

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 ...