/usr/share/xcrysden/examples/CRYSTALxx_input_files/corundum.r1 is in xcrysden-data 1.5.60-1.
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 9 10 | InputFile by XCrystal 1.0
CRYSTAL
0 0 0
167
4.7602 12.9933
2
13 0. 0. 0.35216
8 0.30624 0. 0.25
EXTPRT
STOP
|