Someone recently sent me a kmz file (Google Earth), but I don’t have Google Earth installed, and couldn’t be bothered to put it on my system at the time. How do I quickly view the contents?
Well, you need a url to the file. The easy way is to put it in the public folder of your Dropbox. Copy the public link, go to google maps, and drop that url into the search field and hit search. The contents of that kmz will now be on your google map. Nifty.
Alternatively, a kmz file is a zipped kml file, so you can rename it to have a .zip extension and unzip it, then open up the kml file inside it and (finally) google the location(s) manually. However, the previous method is probably faster.