File Extension TD

File type: Turbo Debugger Configuration File

About the TD file type:

If Windows cannot find the appropriate program associated with .TD files, then your registry may have errors. Check your Windows registry for errors (includes file association errors).

TD files are configuration files for the DOS based Borland Turbo Debugger. This program largely became obsolete with the advent of Windows. It might still be possible to access a .TD file whilst running an early version of Turbo Debugger (version 1 recommended) on a Windows DOS emulator. Alternatively the TD file is also associated with the Microsoft rail simulation package Train Simulator, and, as such, it should be opened with this software.