Winmail.dat, MSG, MHT Viewer play online

Open Winmail.dat, MSG, EML and MHT files easily and securely

Letter Opener has always been the perfect app to open Winmail.dat and MSG e-mail filesthe format used by Microsoft Outlook and Exchangeand also internet standard EML email files. And its even easier and more secure with Letter Opener for Android. Your files are never transferred or shared when you use Letter Opener, and your files and content stays protected on your device.

Privacy and security

Privacy and security arent just something you should hope fortheyre something you should expect. Thats why we never transfer or shared your files. Everything is done on your trusted device. Your emails stay your business.

Supported file types:

winmail.dat or AT00001.dat
Outlook messages: .MSG
Outlook templates: .OFT
E-Mail files: .EML, .EMLX
Web archive files: .MHT, .MHTM, .MHTML

Made with a special for winmail.dat files.