# The TNEF File Viewer Handbook

## Introduction

The TNEF File Viewer allows to handle easily mail attachments using the TNEF format. Those attachments are usually found in mails coming from Microsoft mail servers and embed the mail properties as well as the actual attachments.

An attachment in TNEF format is most often named `winmail.dat` or `win.dat`.

TNEF Main Window TNEF Main Window

This utility program allows to perform various operations on those attachments:

- View/open attachments with associated applications.

- Extract actual attachments

- View message properties (TNEF/MAPI)

- View/extract message formatted text (in RTF format)

&kmail; automatically shows the content of a TNEF attachment. You can open or save the attachments using the actions in the context menu.

TNEF attachment in &kmail; TNEF attachment in &kmail;

## Credits and License

TNEF File Viewer (KTnef)

Program copyright 2000 &Michael.Goffioul; kde-print@kde.org.

Program copyright 2012 Allen Winter winter@kde.org.

&underFDL; &underGPL;