/usr/share/metview/etc/XsectRules is in metview-data 5.0.0~beta.1-1build1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 | %if WIND_HORIZONTAL_COMPONENT = PER %then
%set WIND_PERPENDICULAR = ON
%if WIND_HORIZONTAL_COMPONENT = INT %then
%set WIND_INTENSITY = ON
%if INTERPOLATE_VALUES = NO %then
%unset PRESSURE_LEVEL_AXIS
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