About Winmail.dat, MSG, MHT Viewer
Open 📎 Winmail.dat, MSG, EML and MHT files easily and securely Letter Opener opens winmail.dat and MSG e-mail files as well as EML email files, right on your Android device. It also opens MHT
Open 📎 Winmail.dat, MSG, EML and MHT files easily and securely Letter Opener opens
winmail.dat and
MSG e-mail files as well as
EML email files, right on your Android device. It also opens
MHT web archives, the format browsers use for saved web pages.
Winmail.dat Viewer — what is a winmail.dat file? Someone sent you a
winmail.dat or
ATT00001.dat attachment and it won’t open? That happens when Microsoft Outlook or Exchange packs the message and its attachments into a single winmail.dat file. The winmail.dat viewer unpacks it instantly, so you can read the message and open or save every attachment inside.
MSG Viewer — what is an MSG file? MSG files are email messages saved from Microsoft Outlook on Windows. The MSG viewer shows you the full message on your phone — text, formatting, and attachments included — and opens Outlook’s
OFT template files too.
EML Viewer — what is an EML file? EML files are saved email messages, used by apps like Apple Mail, Thunderbird, and Gmail — yet most Android phones have nothing to open an EML file with. The EML viewer displays the complete message, attachments and all, and opens Apple Mail’s
EMLX files too.
MHT Viewer — what is an MHT file? An
MHT (or MHTML) file is a complete web page saved as a single file, created by browsers like Chrome, Edge and Internet Explorer. The MHT viewer displays the saved page just like the original.
Your files stay private Nothing uploads to the cloud. Nothing leaves your phone. Letter Opener processes everything locally—because your emails are nobody else’s business.
Supported file types: • Outlook: winmail.dat, ATT00001.dat, .MSG, .OFT
• E-Mail files: .EML, .EMLX
• Web archive files: .MHT, .MHTM, .MHTML, .WEBARCHIVE
• Documents: .RTF
• Images: .TIFF, .TIF, .HEIC, .HEIF, .JP2, .J2K, .JPF, .JXL, .WMF, .EMF
Made with a special 😤 for winmail.dat files.
Previous Versions
Here you can find the changelog of Winmail.dat, MSG, MHT Viewer since it was posted on our website on 2020-03-30 10:28:22.
The latest version is 3.4.0 and it was updated on 2026-10-10 05:55:29. See below the changes in each version.
Winmail.dat, MSG, MHT Viewer version 3.4.0
Updated At: 2026-08-31
Changes: Initial Release 🎉
Disclaimer
Official Google Play Link
We do not host Winmail.dat, MSG, MHT Viewer on our servers. We did not scan it for viruses, adware, spyware or other type of malware. This app is hosted by Google and passed their terms and conditions to be listed there. We recommend caution when installing it.
The Google Play link for Winmail.dat, MSG, MHT Viewer is provided to you by apps112.com without any warranties, representations or guarantees of any kind, so access it at your own risk.
If you have questions regarding this particular app contact the publisher directly. For questions about the functionalities of apps112.com contact us.
