With Filestar you get 14 different skills for working productively with 3D Studio Project (.prj) files.
About .Prj
Name
3D Studio Project
Extension
.prj
Category
3D
Developer
Autodesk
Description
PRJ (3D Studio Project) files are project files used by Autodesk 3D Studio, a 3D modeling and animation software. These files contain information about the scene, such as the objects and their properties, as well as camera and lighting settings. They are used to save and load 3D projects in 3D Studio.