Utilities
Letter Opener
Display winmail.dat files directly in Mail.app
Dedicated URL：https://letter-opener.wallong.cn
Official site：https://winmail.help/
9.4K
downloads
37.5K
views
macOS
Platform
2026-10-25
Updated
Download links
No download link has been collected yet — get the official installer from the vendor site.
Description
Display winmail.dat files directly in Mail.app