A Template Kit is a collection of pre-designed templates or layouts with starter content that share a cohesive visual style.
To start with Template Kits you have to install Elementor and Elementor Pro.
Go to Elementor > Settings > Experiments>select Active for “Import Export Template Kit.”> Save Changes.
Go to Elementor > Tools and click the Import/Export Kit tab.
Click Start Import and click Select File to choose your Zip file with the template
By default, all Elementor components are selected to be imported. However, you may deselect any components that you do not want to be imported with the Kit.
Click “Next” and wait until the kit is installed.