/usr/share/doc/gri/examples/example8b.dat is in gri-html-doc 2.12.26-1build1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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516.0 39.38
514.0 118.67
512.0 194.63
508.0 321.14
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