.GPRJ File

The gprj file extension is used for the default project files in Gearotic Motion program. Gearotic Motion was primarily designed as a 3D Gear Template and clock Generator that can create most of the existing gear types found today

How to open:

You can open and continue to work on GPRJ projects in Gearotic Motion.

How to convert:

Probably cannot be converted to other formats.