Glossary - What is a Catpart File Extension?

What is a CATPart File Extension

What is a CATpart File Extension?

What is the CATPart file extension? The .catpart file extension was created by CATIA V5, a 3D CAD manufacturing application. CATPart (or “CATPART”) is used to store part models and includes 3D geometrical and structural data. 

These CATPart files can also be combined with additional parts and info in order to create a CATProduct assembly file.

Keep reading to learn everything you need to know about working with CATPart files extesion. We'll tell you:

  1. What programs can open this CATIA file extension
  2. How you can import this file type into unsupported applications


What Information Do CATPart Files Contain?

CATPart files contain three-dimensional (3D) geometry and structure data of a part model. They are most commonly used to store design information such as machine parts, brackets and casings, and additional equipment pieces.

CATPart files can also store assembly instructions, which is why they are often used in conjunction with CATProduct files. They also store information about how individual parts fit and connect to other parts in an assembly.

CATPart Files

What Programs Can Open the CATPart File Extension?

CATPart file format can be opened with a number of different programs, including:

  • Autodesk Inventor
  • Dassault Systèmes CATIA
  • Dassault Systèmes SolidWorks
  • PTC Creo Elements/Direct Modeling Express
  • Siemens NX
  • FreeCAD

How Do You Open CATPart (and Other CATIA File Extensions) in Unsupported Programs?

If you want to import or export CATPart files from a program that doesn't support them natively, you'll need to use a dedicated conversion program. Note that not all programs are the same, and there is a risk of translation errors.

It’s why Spatial’s 3D InterOp is one of the most reliable ways to read, view, import and export CATPart files. With 3D InterOp you can:

  • Minimize the risk of translation errors
  • Streamline workflows with automated healing and advanced operators
  • Capture and track design changes by importing stable CAD topological identifiers
  • Save resources by performing incremental CAD imports

Learn More About Spatial’s 3D InterOp

With help on issues related to .catpart file extensions contact Spatial today.


CATpart Frequently Asked Questions

1. How do I open a CATPart file?

To open a CATPart file format, you will need a program that supports it natively. For instance, to open a CATPart file in SolidWorks, simply click “File” in the top right, then “Open”. Navigate to the folder containing the file you want to open and click “Open”. Other programs may have a slightly different method for opening files.

You can also use a dedicated program, such as 3D InterOp, to convert the file into a file format your program can open.

2. How do I open a CATIA file in AutoCAD?

To open CATIA file formats, AutoCAD must import the file. In AutoCAD, click the “Insert” tab, find the “Import” panel, and then click “Import”. Navigate to your file in the file explorer, and click “Open”. 

Depending on their size, files can take a few minutes to import. You can learn more about opening CATIA files in AutoCAD here.

3. What is a CATProduct file?

A CATProduct file extension is a type of assembly file created by the CATIA V5 software application and is used to store product models. 

CATProduct files typically contain data about the size, shape, and properties of a product or component. They can also include assembly instructions and information about how individual parts fit and connect to other parts.