Unzip e-mail attachment "winmail.dat" or "*.dat

Sometimes you receive emails with an attachment in .dat format. This attachment cannot be opened directly, it must first be unpacked. The following procedure is recommended:

• First check whether the e-mail is spam, if so, ignore it.
• If the mail is wanted, save the attachment on the computer, e.g. in the ~/Desktop directory.
• Open a console (or a terminal). Enter the following commands:
  cd~/Desktop
  tnef-f winmail.dat -C./

This unpacks the winmail.dat file in the ~/Desktop directory. If you have saved the file in a different directory, change the commands accordingly. If this procedure is not successful, please contact the admins.