Template file created by Visual Studio, a software development tool created by Microsoft; contains both text blocks and control logic used for generating new text files; can be written using Visual C# or Visual Basic code; used for both runtime text generation as well as source code generation. Since TT files are saved in a plain text format, they can be viewed and edited with a text editor.
The TT file extension is associated with Star Trek Armada, a Real-time strategy for PC, by Activision. A *.tt file contains techtree information data.