This widget shows visitor's location on map.
Extract the zip file geolocation-sidebar.zip, then you will see the directory which is named as geolocation-sidebar
Upload the geolocation-sidebar file to the
/wp-content/plugins/ directory on the your web server
Activate the plugin through the 'Plugins' menu in WordPress admin panel
Navigate to Appearance -> Widgets and then you will see Geolocation Sidebar widget, drag and drop it to sidebar
Now, you can type the Title that is shown on your site, by default width and height of map image are 200px, you can change this values.