MailRaider Pro — a commercial version of the free MacRaider app — is now available from 45RPM Software (http://www.45rpmsoftware.com) and at a reduced introductory price of US$3.99 until the end of December 2013.
MailRaider can open email files written by Microsoft Outlook, and extract any attached files. MailRaider Pro (which has a regular price of $8.99) adds support for additional mail formats, including Winmail.dat (TNEF), and the ability to extract email as XML so that you can process it later using tools of your own.
In addition, MailRaider can automatically extract your Outlook files into the most appropriate format. Message files are extracted into Apple Mail format (or your email client of choice), appointments are extracted into Calendar format, and addresses are extracted into Contacts format. What’s more, if you have many emails to extract then you can choose to extract them in bulk — and save them in bulk for import directly into your Mail client.