.TGW File Extension
File TypeTerragen World File
File format categories include Binary, Text, XML, and Zip. The format of this file type has not been determined.
What is a TGW file?
Settings file created by Terragen Classic, a natural scenery generation application; contains world data such as atmosphere, lighting, and surface settings; discontinued in later versions of Terragen.
NOTE: Terragen Classic will only run on Microsoft Windows XP, ME, 2000, Vista, 7, and 8.