restoroot.com is proud to announce the release of Letter Opener 2.2, their winmail.dat converter plug-in for Apple Mail. At its basic, Letter Opener processes Microsoft Outlook winmail.dat files without the requirement for a separate, standalone application. Implemented as a plug-in, Letter Opener lives right inside Mail, allowing users to seamlessly convert winmail.dat files to attachments, iCal files, vCards, and more.