How do I open winmail.dat files?

I used TNEF's Enough and www.winmaildat.com but the Calendar files didn't open as I expected.

So the easiest way is to forward your email with the winmail.dat to a Gmail account and VOILÀ

I think the answer of Apple ""Send to this recipient in Microsoft rich text format checkbox or preference setting in mail client before they send the message." is a vague answer.

My clients don't care if I can open the files they send me. They are not going to change theirs ways just for me.

So Apple should do the right thing and improve Mail app with these feature.

Change winmail.dat extension to winmail.pdf. Open file in Preview

Brilliant, thanks this worked perfectly!

Cheers 🙂

Quick, simple, and it works. Thanks!

Thank you. It worked perfectly!

Sorry this is a Outlook issue we dropped outlook because of this too many customers complaining they could not read our mail 90% non mac users. Our It department would fix it but default settings would get changed back every so often; to much of a pain!

A winmail.dat file is an email attachment archive created by Microsoft Outlook. Usually, they contain a copy of the email message, and may contain file attachments (e.g., PDFs, images, etc).

There are several applications on the Mac App Store that can open winmail.dat files, and allow you to view, copy, and save the contents.

I recommend the one by LawBox: Winmail DAT Viewer.

It's simple and accurate; and LawBox's customer service is legendary – it's worth the purchase price alone.

http://www.lawbox.com/wmx-osx/

Winmail.dat files are created by Microsoft Outlook.

I'm surprised that Apple hasn't incorporate winmail.dat support into something like Preview; sure, it's not "their problem", but then again neither is our need to view PDF files, Excel documents, etc.

That said, there are literally dozens of apps available to open winmail.dat files. I'm partial to Winmail DAT Viewer on the Mac, and its companion app on iOS, but, as I said, there are literally dozens of options. Go with the one you trust.

Great suggestion! Thanks.

Hi,

My work keeps sending me attachments that only come up as Winmail.dat and I cannot open any of them. While exploring ways to resolve this, I came across your post saying turn them into pdfs and tried to do so, to no avail. How did you do it?

Thank you so much for your help in advance!

Using Gmail in Safari to view, download, and open worked perfectly. I was able to download it as a Word doc as well as saving it as a pdf using the print dialogue box.

Other suggestions in re: changing the file name by appending .pdf did not work. Preview was unable to read the document.

Letter Opener Pro does a good job, but $15 update fees and your disabling of the older version whenever new versions of Mac OSX come out get pretty tedious, and expensive, on top of the original purchase price. I think you need to consider a new approach to long term users if you want to keep their business. Winmail files aren't as common as they were , and there ARE other, cheaper ways of dealing with them.

Forward to gmail which will display and dowload individual attachements

TNEF's Enough is a great little program. Thanks!

I've had a strange one today.

The meeting notice arrived as a windmill.dat. What makes it even more strange is that the other person who received the notice could see the meeting notice, the other person received a windmill.dat.

Both in the same office, running a Apple Mail server and both with the same version of mail. Bizarre for that one. I got them to download Klammer. TNEF didn't work with the meeting notice.