PRT files are commonly used in CAD software and 3D modeling applications to store part or assembly files. When it comes to viewing PRT files, having the right viewer can make a big difference in your workflow. Here are some of the best ways to view PRT files:

1. CAD Software: Many CAD software packages, such as SolidWorks, AutoCAD, and CATIA, have built-in support for viewing PRT files. If you're already using a CAD software for your design work, check if it has the capability to view PRT files without the need for additional viewers.

2. PTC Creo View: PTC Creo View is a powerful PRT file viewer that can display and annotate PRT files with ease. It offers a range of intuitive tools for viewing and collaborating on 3D design files, making it a popular choice for engineers and designers.

3. Free PRT File Viewers: If you're looking for a free PRT file viewer, there are several options available online. One popular choice is eDrawings Viewer, a free tool from SolidWorks that allows you to view, print, and review PRT files. Another option is FreeCAD, an open-source parametric 3D CAD modeler that supports PRT files and various other formats.

4. Online PRT Viewers: For quick and easy PRT file viewing, consider using an online viewer. Platforms like A360 Viewer and 3D Viewer Online allow you to upload and view PRT files directly in your web browser, making it convenient for sharing and reviewing designs with collaborators.

5. Third-Party Plugins: Some PRT file viewers come in the form of third-party plugins for popular 3D modeling software. For example, the JT2Go plugin for Siemens NX provides PRT file viewing capabilities within the NX environment, streamlining the workflow for users of this software.

Whether you're a professional engineer, a student, or a hobbyist, having the right PRT file viewer can greatly enhance your experience with CAD software and 3D modeling. Take the time to explore the different options available and find the viewer that best suits your needs and workflow.