Open winmail.dat files

On the go!

Winmail.dat-viewing power on the go!

Sometimes work follows you around, even when you don’t have access to a fully equipped office. Fortunately, smartphones offer a great way to stay in the loop. Keep the workflow smooth with Letter Opener’s winmail.dat-viewing power.

The free version lets you check the contents of an email until you get back to the office, an add-on lets you open attached files on your phone.

Try Now

Available on the App Store.

$3.99 each add-on via in-app-purchase

Winmail.dat-viewing power on the go!

The free version lets you check the contents of an email until you get back to the office, an add-on lets you open attached files on your phone.

Try Now

Available on the App Store.

$3.99 each add-on via in-app-purchase

Add-ons – buy only what you need

Winmail.dat Premium: Access to attachments in winmail.dat files
ZIP Premium: Access to attachments in ZIP archives

What is a winmail.dat file?

Winmail.dat files contain email messages from Microsoft Outlook. Since iPhones, iPads, iPod touch devices and Macs can’t read them natively, users have to rely on third-party software such as Letter Opener to convert and open them.