/usr/share/doc/gri/examples/example12.dat is in gri-html-doc 2.12.23-9build2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 | 800 .0 .2 .3 .4
850 .2 .3 .4 .5
900 .22 .33 .44 .55
950 .6 .7 .8 .9
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