Files with cd file extension are related to the Systems Tool Kit city databases.

There are 3 other file types using
the CD file extension!

empty - Visual Studio class diagram

cd - Philips/Optlmage's Master tool disk image

empty - WaveLab audio CD project

Detailed description

Software that open cd file

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CD file extension - Systems Tool Kit city database

What is cd file? How to open cd files?

File type specification:

Various data file type icon Various data file type

The cd file extension is associated with the Systems Tool Kit (STK), a physics-based software geometry engine, developed by Analytical Graphics software.

The cd file contains city database from STK program.

The default software associated to open cd file:

STK picture or screenshot

STK  Microsoft Windows software

Company or developer:
Analytical Graphics

Systems Tool Kit, a set of tools for solving system level problems of motion and time. The suite includes a free 2D and 3D modeling environment to model complex systems and evaluate their performance in real or simulated time.

Help how to open:

Use STK to work with *.cd files.

How to convert:

As far as we know, this .cd file type can't be converted to any other file format. This is usually the case of system, configuration, temporary, or data files containing data exclusive to only one software and used for its own purposes. Also some proprietary or closed file formats cannot be converted to more common file types in order to protect the intellectual property of the developer, which is for example the case of some DRM-protected multimedia files.

List of recommended software applications associated to the .cd file extension

Recommended software programs are sorted by OS platform (Windows, macOS, Linux, iOS, Android etc.)
and possible program actions that can be done with the file: like open cd file, edit cd file, convert cd file, view cd file, play cd file etc. (if exist software for corresponding action in's database).

Unspecified and all other actions for computer programs working with cd file - Systems Tool Kit city database

Click on the software link for more information about STK. STK uses cd file type for its internal purposes and/or also by different way than common edit or open file actions (eg. to install/execute/support an application itself, to store application or user data, configure program etc.).

Microsoft Windows:

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