There is only one file type that uses the .TT extension:
Visual Studio Text Template
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.
|Microsoft Visual Studio||Commercial|
Updated: January 19, 2010