After extracting the policy templates, you should see two folders: "admx" and "adml".
1. Copy all the .admx files from the "admx" folder to the Policy Definitions folder (C:\Windows\PolicyDefinitions).
2. Then, go into the "adml" folder, find your language folder (for example, "en-US" for English), and copy all the .adml files to the corresponding language folder in the Policy Definitions directory (C:\Windows\PolicyDefinitions\en-US).
This will add the new policy settings to your Group Policy Editor.