Klammer for Mac

Jeffery Battersby
2 October, 2012
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Klammer for Mac

Link to: Klammer for Mac




OS X 10.6.6 or later

Age Rating:  4+


Available on the App Store Buy
App Guide

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, such as bolded text or fancy fonts, to an email message. Outlook, assuming that everyone knows how to read its special formatting, puts it all into a tidy little package that Apple’s Mail app (and many other email applications) can’t read. Klammer (Mac App Store link) helps you unpackage those files so you can get to the important content that is wrapped up inside them.

Klammer is a bit of a one trick pony, but it’s a pretty good trick. When you come across one of these files, you can open it in and use Klammer to read what’s in the file. The application also offers you the option of exporting the file in a format that can be read and imported by most email applications. An optional $10.49 in-app purchase takes batches of these files and, instead of converting them one at a time, allows you to convert them all in one shot.

Macworld Australia‘s buying advice

Klammer is very good at what it does, but its value depends largely on how many files like these you have to open on a regular basis. If you have many of these files to convert, then Klammer may be just the ticket. If you, like me, rarely see these files, have a look at Josh Jacob’s free TNEF Enough or one of the other free Web-based converters.


2 people were compelled to have their say. We encourage you to do the same..

  1. Peter T. says:

    TNEF has never worked for me; not once, not ever.

  2. Geoffrey Luck says:

    For months I was driven mad with winmail.dat files, always having to ask the sender to re-format and re-send. Then I heard of TNEF. Now it sits at the top of my Dock, an instant lifeboat. I have only to drag the mischevous file onto the icon and Poof! it’s transformed. Never missed, one of the best, but fortunately rarely used free tools available.

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