What is a CRP file?
The .CRP file extension is most commonly used as a Cities: Skylines Colossal Raw Asset Package. Developed by Colossal Order and published by Paradox Interactive, these files store game assets like custom buildings, vehicles, and maps. Players usually download these from the Steam Workshop.
However, the .CRP extension has multiple possible meanings. It can also be an encrypted CAD drawing file used by DWG FastView or CAD Reader. Other software, such as dBASE and Siemens COMOS, use .CRP files to store custom reports. It is also used for crop model data in the SWAP model and corporate actions by the Cyprus Stock Exchange.
How to open CRP files?
Because the .CRP extension has multiple uses, you should first identify the origin of the file. If it is a game asset, you open it by placing it in the correct add-on folder for Cities: Skylines. If the file is an encrypted CAD drawing, you need to open it with DWG FastView.
If you do not know the origin of your file, viewer.online/crp can analyze .CRP files to identify the exact format and creator software, inspect the file structure, extract readable text, and check whether an online preview is available.
Best practices and troubleshooting
Never rename the .CRP extension to guess the file type. This can corrupt the file data. If a game asset fails to load, you might be missing a required game update or related mod.
If you need to share the data in a standard format, we recommend file conversion to sensible target formats on convert.guru. For example, you can convert CAD-based .CRP files into standard .DWG or .DXF files, or you can convert report files into .PDF documents.
Summary
Ultimately, viewer.online/crp is useful for identifying, inspecting, and understanding .CRP files without installing software or dealing with compatibility problems.