NFOView is for viewing NFO files (duh!). There's one for Windows and another application for Linux with the similar name, but really this is just for CLI environments.
Usage: nfoview filename
Display NFO files in modern unicode-aware terminals just like they looked back
in the 1990s.
Options:
--version show program's version number and exit
-h, --help show this help message and exit
To install run this as root: python setup.py install
To do a local install do: python setup.py install --home="$HOME"
The most simple way to to see how nfoview works is this
$ nfoview example.nfo