There is only one file type that uses the .TERMINAL extension:
Terminal Settings File
Settings file created by Apple Terminal, the command-line utility included with Mac OS X (Terminal.app); saves window appearance settings such as the font, text and background colors, window size, and shell startup commands; can also be used for saving a Window Group, which is an arrangement of multiple open windows (.
You can export a TERMINAL file by choosingfrom the application menu. Aternatively you can choose , select the "Settings" tab, and then choose "Export" from the left-hand column options menu. You can import Terminal settings here as well by choosing "Import," or by selecting from the application menu.
Developers and system administrators often use different Terminal settings for different tasks. For example, while one window scheme may be used for source code development, another may be used for SSH administration.
NOTE: Terminal includes several pre-built settings schemes that can be accessed from the "Settings" tab within the application preferences window.
Updated: November 1, 2011