In most cases you have to unzip the main plugin file and double click on the .CCX file.
Follow this guide to install our Plugins.
In some cases your system could not have a standard setup. In that case, it's not our plugin fault but your system settings to fail the CCX to install with a double click. Right click on the .CCX file and check if the "UnifiedPluginInstallerAgent" is selected by default. If not, relink this process to the CCX file.
If it's still failing, it means your system has some issues with Creative Cloud. Proceed with a manual installation as described in the video.