The 3D geometry of the object.
While Trainz’s built‑in Content Manager is perfectly capable of importing CDP files, it has several limitations that third‑party converters address:
[ Your Downloaded .CDP File ] │ ├──► Asset 1: Locomotive (KUID:XXXXX) -> Config.chump / Textures / Meshes ├──► Asset 2: Bogies (KUID:YYYYY) -> Config.chump / Textures / Meshes └──► Asset 3: Cabin (KUID:ZZZZZ) -> Config.chump / Textures / Meshes
Open the config.txt file in Notepad to adjust KUID dependencies, names, or description strings if necessary. Step 3: Commit the Changes trainz cdp converter
Import the .cdp file into Content Manager, right-click the asset, and select Show in Explorer (or Open for Editing ). This automatically converts the compressed archive into a standard Windows folder containing all raw assets.
If you just want to see what’s inside a CDP or extract a single asset, CDP Explorer is the quickest option.
This method gives you full file‑level access to an asset without needing the game. The 3D geometry of the object
: Newer assets often use tags or scripts not supported by older versions. You may need to delete script lines or replace KUIDs for incompatible parts like cab interiors.
Step-by-Step: How to Convert a CDP File to an Editable Folder
Older assets imported into newer versions of Trainz often throw errors. Converting the CDP back to raw files allows you to manually edit the config.txt file to fix compatibility issues. This automatically converts the compressed archive into a
When exporting a route, this is . The route .CDP file is essentially a blueprint that tells the game where to place objects. The objects themselves (the buildings, trees, tracks) are the "dependencies" that must also be exported separately.
CDP files act as compressed archives, similar to .zip or .rar files, but are specifically structured for the Trainz JET engine. Every asset inside a CDP file is identified by a unique (Kuju Unique Identifier), which prevents asset duplication and manages content versioning.
It opens the proprietary Trainz .texture files found inside an extracted CDP and converts them back into standard .tga (Targa) or .bmp files.