A Keyhole Markup Language file is frequently referred to by the file extension KML. KML files are generally used to store geographic data in a common XML format that Google Earth understands.

KML stands for keyhole markup language this is an XML based file format and that is store geographical data to store and accurate content and is an Open Geographical Consortium (OGC) standard. KML is format to sharing geographical data with non GIS users as it can be easily delivered on the internet and that is viewed in a number of free application. Including Google Earth and ArcGIS Explorer. KML...