Winmail, MSG, EML Viewer - Letter Opener

Letter Opener opens winmail.dat, MSG and EML files, and whole Outlook PST and mbox mailboxes, in a fast, modern Windows app. Some people still use Outlook. And whenever they send you something like an attachment, it shows up in your Mail as a winmail.dat file. (Ugh.) Letter Opener unpacks it, shows you the message, and lets you open or save every attachment inside. (Hooray!) Mailboxes, too Open Outlook data files (.pst) and mbox mailboxes from Thunderbird, Apple Mail or Google Takeout: folders, messages and the message itself, side by side. Export a mailbox to EML or PDF files, one per message, in folders that match the mailbox. Your files stay on your PC Letter Opener opens everything right on your PC. Your emails are never uploaded, because they are nobody else's business. Supported file types • Outlook: winmail.dat, ATT00001.dat, .msg, .oft • Email files: .eml, .emlx • Mailboxes: .pst, .mbox • Web pages: .webarchive Made with a special 😤 for winmail.dat files.