/usr/share/doc/xmlstarlet/examples/unicode1 is in xmlstarlet 1.6.1-2.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
1 2 3 | #!/bin/sh
# Select from XML document containing unicode characters
./xmlstarlet sel -T -t -m "//test[@lang='français']/@lang" -v . -n xml/unicode.xml
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