/usr/lib/libreoffice/share/extensions/ is in libreoffice-canzeley-client 0.5.0-2.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/libreoffice/share/extensions/canzeley-client/
/usr/lib/libreoffice/share/extensions/canzeley-client/Addons.xcu
/usr/lib/libreoffice/share/extensions/canzeley-client/Kanzleiprogramm/
/usr/lib/libreoffice/share/extensions/canzeley-client/Kanzleiprogramm/AdressenAWDia.xdl
/usr/lib/libreoffice/share/extensions/canzeley-client/Kanzleiprogramm/AdressenAWMod1.xba
/usr/lib/libreoffice/share/extensions/canzeley-client/Kanzleiprogramm/AdressenDia.xdl
/usr/lib/libreoffice/share/extensions/canzeley-client/Kanzleiprogramm/AdressenMod1.xba
/usr/lib/libreoffice/share/extensions/canzeley-client/Kanzleiprogramm/AdressenMod2.xba
/usr/lib/libreoffice/share/extensions/canzeley-client/Kanzleiprogramm/AktenAWDia.xdl
/usr/lib/libreoffice/share/extensions/canzeley-client/Kanzleiprogramm/AktenAWMod.xba
/usr/lib/libreoffice/share/extensions/canzeley-client/Kanzleiprogramm/AktenAblMod1.xba
/usr/lib/libreoffice/share/extensions/canzeley-client/Kanzleiprogramm/AktenAnlMod1.xba
/usr/lib/libreoffice/share/extensions/canzeley-client/Kanzleiprogramm/AktenAnsDia.xdl
/usr/lib/libreoffice/share/extensions/canzeley-client/Kanzleiprogramm/AktenAnsMod1.xba
/usr/lib/libreoffice/share/extensions/canzeley-client/Kanzleiprogramm/AktenDia.xdl
/usr/lib/libreoffice/share/extensions/canzeley-client/Kanzleiprogramm/AktenMod1.xba
/usr/lib/libreoffice/share/extensions/canzeley-client/Kanzleiprogramm/AktenMod2.xba
/usr/lib/libreoffice/share/extensions/canzeley-client/Kanzleiprogramm/AktenMod3.xba
/usr/lib/libreoffice/share/extensions/canzeley-client/Kanzleiprogramm/DBAnbindMod.xba
/usr/lib/libreoffice/share/extensions/canzeley-client/Kanzleiprogramm/DiaMod1.xba
/usr/lib/libreoffice/share/extensions/canzeley-client/Kanzleiprogramm/DiaMod2.xba
/usr/lib/libreoffice/share/extensions/canzeley-client/Kanzleiprogramm/FSMod.xba
/usr/lib/libreoffice/share/extensions/canzeley-client/Kanzleiprogramm/FoBerMod1.xba
/usr/lib/libreoffice/share/extensions/canzeley-client/Kanzleiprogramm/GerichtAnlDia.xdl
/usr/lib/libreoffice/share/extensions/canzeley-client/Kanzleiprogramm/GerichtAnlMod1.xba
/usr/lib/libreoffice/share/extensions/canzeley-client/Kanzleiprogramm/GerichtDia.xdl
/usr/lib/libreoffice/share/extensions/canzeley-client/Kanzleiprogramm/GerichtMod1.xba
/usr/lib/libreoffice/share/extensions/canzeley-client/Kanzleiprogramm/GerichtMod2.xba
/usr/lib/libreoffice/share/extensions/canzeley-client/Kanzleiprogramm/HauptAWDia.xdl
/usr/lib/libreoffice/share/extensions/canzeley-client/Kanzleiprogramm/HauptAWMod.xba
/usr/lib/libreoffice/share/extensions/canzeley-client/Kanzleiprogramm/HerkunftMod1.xba
/usr/lib/libreoffice/share/extensions/canzeley-client/Kanzleiprogramm/IBANDiaMod.xba
/usr/lib/libreoffice/share/extensions/canzeley-client/Kanzleiprogramm/LibOMod.xba
/usr/lib/libreoffice/share/extensions/canzeley-client/Kanzleiprogramm/RegDBDia.xdl
/usr/lib/libreoffice/share/extensions/canzeley-client/Kanzleiprogramm/RegDBMod1.xba
/usr/lib/libreoffice/share/extensions/canzeley-client/Kanzleiprogramm/SQLMod.xba
/usr/lib/libreoffice/share/extensions/canzeley-client/Kanzleiprogramm/Start.xba
/usr/lib/libreoffice/share/extensions/canzeley-client/Kanzleiprogramm/SysDatenDia.xdl
/usr/lib/libreoffice/share/extensions/canzeley-client/Kanzleiprogramm/SysDatenMod1.xba
/usr/lib/libreoffice/share/extensions/canzeley-client/Kanzleiprogramm/SystemAdminDia.xdl
/usr/lib/libreoffice/share/extensions/canzeley-client/Kanzleiprogramm/SystemAdminMod1.xba
/usr/lib/libreoffice/share/extensions/canzeley-client/Kanzleiprogramm/SystemPflegeDia.xdl
/usr/lib/libreoffice/share/extensions/canzeley-client/Kanzleiprogramm/SystemPflegeMod1.xba
/usr/lib/libreoffice/share/extensions/canzeley-client/Kanzleiprogramm/VorlagenAWDia.xdl
/usr/lib/libreoffice/share/extensions/canzeley-client/Kanzleiprogramm/VorlagenAWMod1.xba
/usr/lib/libreoffice/share/extensions/canzeley-client/Kanzleiprogramm/VorlagenErfMod.xba
/usr/lib/libreoffice/share/extensions/canzeley-client/Kanzleiprogramm/VorlagenMod1.xba
/usr/lib/libreoffice/share/extensions/canzeley-client/Kanzleiprogramm/WvDia.xdl
/usr/lib/libreoffice/share/extensions/canzeley-client/Kanzleiprogramm/WvMod1.xba
/usr/lib/libreoffice/share/extensions/canzeley-client/Kanzleiprogramm/dialog.xlb
/usr/lib/libreoffice/share/extensions/canzeley-client/Kanzleiprogramm/script.xlb
/usr/lib/libreoffice/share/extensions/canzeley-client/META-INF/
/usr/lib/libreoffice/share/extensions/canzeley-client/META-INF/manifest.xml
/usr/lib/libreoffice/share/extensions/canzeley-client/Office/
/usr/lib/libreoffice/share/extensions/canzeley-client/Office/UI/
/usr/lib/libreoffice/share/extensions/canzeley-client/Office/UI/BaseWindowState.xcu
/usr/lib/libreoffice/share/extensions/canzeley-client/Office/UI/BasicIDEWindowState.xcu
/usr/lib/libreoffice/share/extensions/canzeley-client/Office/UI/CalcWindowState.xcu
/usr/lib/libreoffice/share/extensions/canzeley-client/Office/UI/DrawWindowState.xcu
/usr/lib/libreoffice/share/extensions/canzeley-client/Office/UI/ImpressWindowState.xcu
/usr/lib/libreoffice/share/extensions/canzeley-client/Office/UI/MathWindowState.xcu
/usr/lib/libreoffice/share/extensions/canzeley-client/Office/UI/StartModuleWindowState.xcu
/usr/lib/libreoffice/share/extensions/canzeley-client/Office/UI/WriterWindowState.xcu
/usr/lib/libreoffice/share/extensions/canzeley-client/description.xml
/usr/lib/libreoffice/share/extensions/canzeley-client/icons
/usr/lib/libreoffice/share/extensions/canzeley-client/pkg-desc/
/usr/lib/libreoffice/share/extensions/canzeley-client/pkg-desc/pkg-description.txt