Click on “Extensions” and then “Install/Uninstall”
Then click on “Browse” in the “Upload Package File” Box and select your Extension file.
In the example below I will install the JFusion component.
Then click on “Upload File & Install” next to the “Browse” button. And it will install the Extension.
If the component installed successfully you should see the below message
“Install Component Success” and the Extension is installed successfully.
Now click on “Components” at the Menu and you should see the newly installed component.
If you installed a module.
Go to template or plug-in
It will be under Extensions in the Top Menu under Module Manager or whatever you installed.