PRT File Extension

CAD 3D Part Or Component Format
- File Type prt
- Developer PTC
- Popularity
- Application CADKEY
- Category CAD, CAM and CAE Files
- Format Binary
What is a PRT file?
Files with the PRT extension are specifically tied to CAD 3D Part Or Component Format, a CAD, CAM and CAE Files type, and there are 148 files in this category.
PRT files are supported by Windows. If you need to open a PRT file, you can use one of 14 programs, such as CADKEY, P-CAD and Pro/ENGINEER.
Programs that support PRT files
How to open a PRT file?
If you’re having difficulty opening a PRT file, it is often due to not having the correct software. To solve the problem, choose a compatible program from the list. Then follow the link to the official developer site, download the software, and install it on your device.
CADKEY, P-CAD and Pro/ENGINEER stand out as the preferred programs to manage PRT files effectively. To install the latest version of CADKEY on your computer, visit the Kubotek USA website where you can download the version available for all operating systems.
After installation, your operating system should automatically open PRT files with CADKEY.
Set CADKEY as the default PRT handler
Choose an app to open a file on Mac
- Right click or use Control + left click on the desired PRT file to launch the file options menu;
- Choose "Open in Application" and click "Other";
- Next, at the bottom of the window, you will see the "Enable" menu, in which "Recommended Programs" is selected by default;
- In this menu, select "All Programs", then find CADKEY and check the box next to "Always open in the application."
Set default programs for Windows
- Start by right-clicking on your PRT file, then select "Open With" and continue by clicking "Choose another app" from the options provided;
- In the pop-up window, find and select the CADKEY application from the available options;
- Make sure the "Always use this app" checkbox is checked and click "OK" to confirm your choice as the default app for opening PRT files.
Convert files to and from PRT
If you have trouble working with a PRT file, try converting it to DXF, DWG, JPG, JPEG, OBJ or similar cad, cam and cae files.
Be aware that converting a PRT file may reduce some features, but you can usually revert it to the original format.
Convert PRT to other file formats
Effective solutions for PRT file problems
There are some common issues with PRT files that can be resolved easily by making minor adjustments to your software. Below, you’ll find these issues along with practical troubleshooting tips.
What are the methods to detect if my PRT file has been corrupted?
PRT cad, cam and cae files that have become corrupted may display one or more of the following symptoms:
- An unexplained increase in the size of the PRT file;
- Trying to work with the archive in CADKEY or other programs causes instability or program crashes;
- The file does not open correctly or displays error messages;
- While working with the file, error alerts are encountered;
- The file exhibits poor performance during editing operations in CADKEY;
Why does CADKEY crash?
Insufficient software updates can contribute to CADKEY crash. To avoid this, make sure that you have installed the latest updates for Kubotek USA products.
Restarting your computer can resolve numerous common problems, so it should be the initial step before changing any software-related settings.
How to repair a corrupted PRT file?
Open the damaged PRT file in a recovery program and select the "Repair" menu item to start the repair operation. Please wait patiently for the recovery process to finish as it will automatically repair the damaged cad, cam and cae files.
How to edit a PRT file?
To make changes to PRT files, you need specialized software that allows both opening and editing the cad, cam and cae files. Online PRT editors offer fewer capabilities than applications optimized for CAD 3D Part Or Component Format.
Best PRT editors 2026
Based on these criteria, we have prepared a list of available PRT editors.
| PRT Editor Software | Developer | Platforms | Overall Rating |
|---|---|---|---|
| P-CAD | Altium Limited | Windows | 4.6 out of 5 (44 reviews) |
| Solid Edge | Siemens PLM | Windows | 4.6 out of 5 (37 reviews) |
| NX | Siemens PLM | Windows | 4.5 out of 5 (48 reviews) |
| Pro/ENGINEER | Parametric | Windows | 4.5 out of 5 (45 reviews) |
| SolidWorks | SolidWorks | Windows | 4.5 out of 5 (45 reviews) |
| CADKEY | Kubotek USA | Windows | 4.3 out of 5 (45 reviews) |












