What is “tnef” Package?

Microsoft MS-TNEF attachment unpacker
For more details: https://github.com/verdammelt/tnef

Installation

• Open Terminal by pressing command+space then type terminal and hit Enter key.
• Install homebrew first.

  ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)" < /dev/null 2> /dev/null

• Install tnef.

  brew install tnef

Now, use tnef!