.TGW File Extension

A .TGW file is a Terragen World File, created by Planetside Software.

Open with Planetside Software Terragen Classic. Available for Windows.

What is a .TGW file?

The .TGW file is a type of file known as a Terragen World File. It is used by a program called Terragen Classic, which is a special software designed to create realistic-looking natural scenery, like mountains, skies, and oceans. The .TGW file contains important information that Terragen Classic needs to generate these scenes. This information includes settings for the atmosphere (like clouds and sky color), lighting (how bright or dark the scene should be), and surface details (textures and shapes of the land).

However, it's important to note that the .TGW file format is not used in newer versions of the Terragen software. This means that if you're using a more recent version of Terragen, it might not be able to open or use .TGW files.

If you have a .TGW file and you want to open it, you will need to use the Terragen Classic program. Terragen Classic is made by a company called Planetside Software. Unfortunately, Terragen Classic has some limitations on what operating systems it can run on. It is only compatible with older versions of Microsoft Windows, specifically Windows XP, ME, 2000, Vista, 7, and 8. If you have one of these operating systems, you should be able to run Terragen Classic and open .TGW files to view or edit the natural scenery settings they contain.


Our goal is to help people find the most up-to-date information about file extensions for Windows, Mac, Linux, Android and iOS. We researched over 10,000 file extensions and their respective programs that open those files. If you want to suggest edits or updates about .TGW file formats, example files, or programs that are compatible. Please contact us.

More extensions