/usr/share/dbus-1/services/org.mate.freedesktop.FileManager1.service is in caja-common 1.12.7-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 | [D-BUS Service]
Name=org.freedesktop.FileManager1
Exec=/usr/bin/caja --no-default-window
|