/usr/share/cups/templates/es/printer-jobs-header.tmpl is in cups-server-common 1.7.2-0ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 | <DIV CLASS="indent">
<H3 CLASS="title">Trabajos</H3>
</DIV>
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