CDP File Type

- The quick facts

What are CDP files and how to open them

Are you having problems opening a CDP file or just wondering what they contain? We explain what these files are used for and show you software that we know can open or otherwise handle your files.

What is a CDP file?

Files with the .cdp file extension are most commonly used by the Trainz Simulator railroad games. These games allow players to create train simulations including train routes and locomotive designs. The CDP files contain add-on content that can be used in the game, providing players with additional routes, scenery, train designs and other game components.

The .cdp file extension is also used for SONY CD Architect project files, CA Visual Objects Platform for Developer files and CD/Spectrum Pro files.

How to open CDP files

Important: Different programs may use files with the CDP file extension for different purposes, so unless you are sure which format your CDP file is, you may need to try a few different programs.

While we have not verified the apps ourselves yet, our users have suggested 10 different CDP openers which you will find listed below.

Last updated: November 14, 2021

Suggest another file format using extension CDP

While we know of one file format using the .CDP file extension, there may be more. It is widespread that different programs use files with the same file extension for very different types of data. Please let us know if you are aware of a different kind of .CDP file.

Various apps that use files with this extension

These apps are known to open certain types of CDP files. Remember, different programs may use CDP files for different purposes, so you may need to try out a few of them to be able to open your specific file.