.PRJPCB File

File extension prjpcb is most likely solely used in Altium Designer, a PCB (printed circuit boards) designing tool for Microsoft Windows operating system developed by Altium Limited.

A .prjpcb file stores project of PCB board.

How to open:

Use Altium Designer to open *.prjpcb project files.

How to convert:

Various 3D models or CAD files can be typically exported to some exchange format or converted between different formats. Once again, not all CAD/3D modeling programs may allow conversion of every format. But, there is always the option of using some of the dedicated 3D conversion utilities with a broad file format support. For general information try to look at:Basic info how to convert CAD and other 3D graphic files