/usr/ is in libjxr-dev 1.1-6build1.
This file is owned by root:root, with mode 0o755.
..
/usr/include/
/usr/include/jxrlib/
/usr/include/jxrlib/JXRGlue.h
/usr/include/jxrlib/JXRMeta.h
/usr/include/jxrlib/JXRTest.h
/usr/include/jxrlib/guiddef.h
/usr/include/jxrlib/windowsmediaphoto.h
/usr/include/jxrlib/wmsal.h
/usr/include/jxrlib/wmspecstring.h
/usr/include/jxrlib/wmspecstrings_adt.h
/usr/include/jxrlib/wmspecstrings_strict.h
/usr/include/jxrlib/wmspecstrings_undef.h
/usr/lib/
/usr/lib/x86_64-linux-gnu/
/usr/share/
/usr/share/doc/
/usr/share/doc/libjxr-dev/
/usr/share/doc/libjxr-dev/copyright
/usr/lib/x86_64-linux-gnu/libjpegxr.so
/usr/lib/x86_64-linux-gnu/libjxrglue.so
/usr/share/doc/libjxr-dev/changelog.Debian.gz