/usr/share/menu/extrema is in extrema 4.4.5.dfsg-3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 | ?package(extrema):needs="X11" section="Applications/Science/Data Analysis"\
title="Extrema" command="/usr/bin/extrema"\
icon="/usr/share/pixmaps/extrema.xpm"
|