Winmail Opener is a small and simple utility that allows you to view and extract contents of TNEF-encoded messages (infamous winmail.dat). If you receive winmail.dat files in your e-mail, you can view the rich text message contents and attachments embedded into these files with Winmail Opener. You may receive winmail.dat files from the senders who are using Microsoft Outlook (97, 2000, 2013 and so