Utilities
Letter Opener
Display winmail.dat files directly in Mail.app
Dedicated URL：https://letter-opener.hncmag.com
Official site：https://winmail.help/
9.4K
downloads
37.5K
views
macOS
Platform
2026-10-30
Updated
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Ratings
4.4
2,438 reviews
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