To install a module on Drupal 8, follow these steps:
1. Download the module from the Drupal.org website or via Composer.
1. Extract the module archive file.
1. Upload the module folder to the /modules directory in your Drupal installation.
1. Login to your Drupal site as an administrator.
1. Go to the Extend menu by clicking on the “Extend” link in the top menu bar.
1. In the “Extend” page, click on “Install new module.”
1. Click on the “Choose File” button and select the module archive file you downloaded in step 1.
1. Click on the “Install” button to upload and install the module.
1. Once the module is installed, you can enable it by checking the box next to the module name.
1. Click on the “Install” button to enable the module.
1. Configure any settings for the module as necessary.
1. Click on the “Save configuration” button to save the settings.
That’s it! The module is now installed and enabled on your Drupal site.
