.TGW File

The tgw file extension is used by the TerraGen landscape and environment rendering software.

These tgw files contain saved world data, most likely some sort of render settings, or graphics.

Files with tgw file extension can be found as world files from TerraGen.

How to open:

You can work with these files using TerraGen.

How to convert:

Probably can be converted to other formats.