vboxmanage-extpack
Manage extension packs for Oracle VirtualBox.
TLDR
Install extension packs to VirtualBox (Note: you need to remove the existing version of the extension pack before installing a new version.)
$ VBoxManage extpack install [path/to/file.vbox-extpack]
Remove the existing version of the VirtualBox extension pack
$ VBoxManage extpack install --replace
Uninstall extension packs from VirtualBox
$ VBoxManage extpack uninstall [extension_pack_name]
Uninstall extension packs and skip most uninstallation refusals
$ VBoxManage extpack uninstall --force [extension_pack_name]
Clean up temporary files and directories left by extension packs
$ VBoxManage extpack cleanup
