/usr/share/pymca/attdata/EGRID.TXT is in pymca-data 5.2.2+dfsg-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 | 16
1.0E-04 5.0E-04 0.250 0.350 0.450 0.550
0.650 0.750 0.850 0.950 1.3 1.4
1.6 1.8 2.2 2.6
|