To install CR 2 Trial, simply double-click the downloaded '.ccx' file. This will open the Adobe Creative Cloud Desktop app, guiding you through the installation process.
If the Creative Cloud desktop app does not open with a double-click, you can use this tool for the installation: ZXP/UXP Installer
If Photoshop is open during the installation, the plugin panels will automatically appear. CR 2 consists of 3 panels that can be docked in different locations. They are named CR 2 Trial, CR 2 Trial (Panel 2), and CR 2 Trial (Panel 3).
If Photoshop is not open during installation, you can access the panels via 'Plugins > Configurator Reloaded 2 Trial' in Photoshop.