When you download a locomotive or a scenery item from a third-party site (such as the Download Station or fan forums), it typically arrives in this format. Under normal circumstances, a user simply drags this file into the game’s installation folder, and the Content Manager unpacks it automatically. However, this automated process assumes you want to install the content immediately and permanently into your database.

If you are editing the config.txt file of an extracted asset, ensure the trainz-build tag matches the minimum version requirements of your target game version, otherwise, the asset will register as faulty upon re-import.

A CDP Extractor is a software tool (or manual method) that unpacks the contents of a .cdp file into its raw, editable source files—typically a folder containing config.txt , image files ( .tga , .bmp , .jpg ), mesh files ( .im ), and sound assets ( .wav ). This article provides a complete, step-by-step guide to extracting CDP files, the tools you need, common use cases, and troubleshooting advice.

While the native Content Manager (CM) tool provided by N3V handles the installation and validation of CDP files, there is a persistent requirement within the community for tools capable of opening, inspecting, and extracting these archives without immediate installation. Tools colloquially referred to as "CDP Extractors" serve this purpose, bridging the gap between compiled archives and raw file access.

# Batch CDP Extractor Script $sourceFolder = "C:\CDP_Backup" $destFolder = "C:\Extracted_All" $cdpArchive = "C:\Trainz\bin\CDPArchive.exe"