/usr/lib/libreoffice/share/extensions/DmathsAddon/ is in libreoffice-dmaths 3.4+dfsg1-1.
This file is owned by root:root, with mode 0o755.
There are a lot of files here (1803 total).
We're only showing the immediate contents of /usr/lib/libreoffice/share/extensions/DmathsAddon
.