File extension kml information

KML file format is used in displaying geographic data in an earth browser like Google maps and Google earth. Tag based structures are case sensitive and must appear exactly as listed in KML reference. The reference is for indication of the optional tags. The simplest type of KML documents are authored directly by Google earth and one doesn’t need to edit or create them. File extension KML text editor comprise of place marks, paths, ground overlays and polygons which are useful in generating simple buildings as well as other shapes
The more advanced KML documents e.g. screen overlays, shred styles for geometry and highlighted icons for place marks must be authored using text editors. File extension KML files can also be authored by hand to modify and create features. To apply them a style at the beginning of KML files is defined and an ID labeled for it. When the style definition is inside the same file then the style ID is preceded with a marked sign. Style definition in an external file includes the complete URL in its style.