How do I open winmail.dat files?

I've found this workaround: If you Save the winmail.dat file with .pdf on the end, then you can Open that Saved file with Preview. A bit of a drag having to Save the File but this method is free, it works, and luckily I only have one emailer who uses winmai.dat. If I had heaps using it I would probably buy an App.

I tried "Rikx's" suggestion and it worked like a charm. I'm the only Mac user in an office full of Windows users, so more often than not, I'm on my own to find workarounds for things like this. Thank you Rikx for the quick and easy solution to my question as well. 🙂

Mac OS X Mail- What is a winmail.dat attachment?.

You might try using TextEdit.

Josh Jacob - TNEF's Enough

I have tried many apps. They all keep telling me my files are not TNEF? Suggestions?

In support of Linc's suggestion, I have it and it works fine.

This is a common problem.

I have found a converion web-site www.winmaildat.com, where you upload the problem file, and it is automatically 'deciphered', and the contents can be downloaded in their individual files.

Depending on how many emails you get with winmail.dat attachments may I suggest my products:

Letter Opener Pro is integrated right into Mac OS X Mail and Microsoft Outlook 2011 and converts these files seamlessly in the background.

Letter Opener Lite is a standalone App to convert winmail.dat.

Cheers,

Christopher

“I may receive some form of compensation, financial or otherwise, from my recommendation or link." <Edited by Host>

I bought Winmail viewer from Apple app store and it works great.

I use TNEF's Enough but I received a winmail.dat today that it couldn't open, but the site www.winmaildat.com could open it. That makes me suspect that there's been some kind of Microsoft update. I hate running data through a site I don't know anything about, so I hope TNEF's still being maintained.

You may try the enolsoft winmail viewer to help you open it.

If you don't want to import a special program to open winmail.dat on mac, follow the advice of Rikx below. It works.

If WINMAIL.DAT files are showing up from only one or two PC users, ask them to delete you (or your email address) from their CONTACTS folder. This worked for me - I had one person whose emails converted everything to unopenable WINMAIL.DAT files. Tried changing this email settings to Plain Text, but that did nothing.

Once he terminated me from his CONTACTS program, no problema.

Guessing the MS CONTACTS program automatically converts attachments .....

StJohnTiger has the fix.

Anyone who has your contact in MS Outlook associated with other accounts that are Exchange Imap users will cause this issue.

Simply have those people remove your email contact and recreate a new one without any association to Exchange or other email accounts.

Works for me.