TNEF Extractor

Get the real files out of the pesky winmail.dat
Author:StarApps GmbH
Categories:Office, Internet
Google Play:Check if it's there

Got a mail from some MS Outlook user which has a strange attachment going by the file name „winmail.dat” – and no idea what to do with that? Well, you’re not alone. What’s behind that is MS’ TNEF format, full name „Transport Neutral Encapsulation Format”, which no other software (but Outlook and Exchange) uses. And especially your Android device knows nothing about.

So this app comes to your rescue: whenever you open a „winmail.dat” attachment from a mail in e.g. K-9 Mail, ''TNEF Extractor'' jumps in, looks what’s inside, asks you where to extract it to – and even offers you to open the enclosed file. So if that was e.g. a PDF file, and you have a PDF viewer app like MuPDF installed on your device, the file is opened with just two taps. Easy going, finally!

PS: Don't wonder that there won’t be an app icon in your drawer. ''TNEF Extractor'' doesn’t need one, and neither do you. There’s nothing to configure – the app just pops up when needed.

How got it started? Check out on Mastodon. I (Izzy) called for help – and just a week later, Fabio had it ready. Amazing!

Hint: This app is available in both, F-Droid Main and IzzyOnDroid repos.


initial version

Download Source Issues ChangeLog


Version 1.0.0 (2019-09-16)

Android Versions:
  • Target: 10.0
  • MinVer: 4.0.3
4 Libraries detected:

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