Interesting, neither the software station nor 'pkg search ...' shows anything for openoffice and apache-openoffice on my GhostBSD 14.3-RELEASE-p8 box.
Just to confirm, I also ran:
sudo pkg install apache-openoffice
Updating GhostBSD repository catalogue...
GhostBSD repository is up to date.
Updating GhostBSD-base repository catalogue...
GhostBSD-base repository is up to date.
All repositories are up to date.
pkg: No packages available to install matching 'apache-openoffice' have been found in the repositories
freshports.org shows apache-openoffice as being available for FreeBSD as 'openoffice-4'
Perhaps some change is delaying apache-openoffice from making it back into GhostBSD's repos.