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 ...

Reader Richard Shaffer is perplexed by the contents of his email. He writes: Some email messages I receive contain “winmail.dat” attachments. I can’t open these with any applications I own. Any ...

If you live in a world where you get email from Outlook users, and I think most of us do, you probably see the dreaded winmail.dat file on occasion. Outlook compresses all of its attachments together ...

It’s been at least a year since I’ve received an email with a winmail.dat file as an attachment. Winmail.dat and MSG files are created when someone using Microsoft Outlook adds special formatting, ...

winmail.dat. Does reading those words give you the beginnings of heartburn? Those who regularly trade email with Windows users are all too familiar with winmail.dat files, which are email attachments ...

A file that contains RTF format codes in order to support rich text in email messages. WINMAIL.DAT is a UUencoded file that is sent from a Microsoft Outlook or Exchange email client. If the recipient ...