What is a CATPRODUCT file?
A .CATPRODUCT file is a CATIA V5 Assembly File created by CAD software from Dassault Systemes. It contains assembly data that links multiple 3D parts together to form a complete product design. Unlike part files, .CATPRODUCT files do not store the actual 3D geometry of individual components. Instead, they store references to part files (like .CATPART) and the positional constraints between them.
How to open CATPRODUCT files?
The standard way to open a .CATPRODUCT file is using CATIA. Other major CAD systems like Siemens NX or SolidWorks can also import these files. For users without a CAD license, free viewer tools like eDrawings or CAD interoperability software are useful alternatives.
Best practices and troubleshooting
Because a .CATPRODUCT file only stores links, you must keep all associated .CATPART files in the correct folder structure. If the referenced part files are missing or moved, the assembly will fail to load the 3D models properly. When sharing a .CATPRODUCT file, always package all dependent files together.
Inspecting files with viewer.online
If you receive a file and cannot open it, viewer.online/catproduct can analyze .CATPRODUCT files to identify the exact format and creator software. Our tool lets you inspect the file structure, extract readable text (such as file paths to missing parts), and check whether an online preview is available.
Summary
viewer.online/catproduct is useful for identifying, inspecting, and understanding .CATPRODUCT files without installing software or dealing with compatibility problems. It helps you quickly verify assembly references and troubleshoot broken links.