If you don't have Google Earth installed on your computer then you can download it, free of charge, from the Google Earth web site.

Once Google Earth is installed on your computer then follow the instructions below for your particular web browser to view the file you require from the list on the left of this page.

• Internet Explorer
  Double-click on the file you require and it will be launched in Google Earth.
• Firefox
  Double-click on the file you require and FireFox will ask you what to do with the .kmz file. You should save it to your desktop and then couble-click it from there to launch it in Google Earth.
• Safari
  
  • Control-click (Mac) or right-click (Windows) on the file you require to reveal a pop-up menu;
  • choose the Save Linked File tot he Desktop option and thus save the file to your desktop;
  • double-click that file (which ends in .kmz.zip) on your desktop to 'unzip' it;
  • double-click the resultant file (which ends in .kml) to launch it in Google Earth.