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OPJ File

What are OPJ files and how to open them

Are you having problems opening an OPJ file or are you simply curious about its contents? We're here to explain the properties of these files and provide you with software that can open or handle your OPJ files.

What is an OPJ file?

OPJ files have multiple uses, and OrCAD Project is one of them. Read more about the other uses further down the page.

OrCAD Project

These files are associated with OrCAD PCB Designer. OPJ files contain printed circuit board projects that are used by electricians and mechanics to serve as a guide in installing or creating a wiring system for various electronic products and automobiles.

A printed circuit board, or PCB, is a thin plate on which chips and other electronic components are placed. It is the green board or card that holds the wiring components of the device.

Computers consist of one or more boards, often called cards or adapters. Cars also have PCBs used to run and control their internal system.

Manufacturers often use CAD-based software to design the PCB. These designs are frequently saved in .opj format. The OPJ file is a CAD project file created using OrCAD - a program used for designing PCB. It also holds references to files included in the project and specific project settings.

Although .opj files are saved in a plain text format, modifications should only be done using OrCAD software and not with Text Editor applications.

How to open OPJ files

We have identified two OPJ openers that are compatible with this specific type of OPJ file.

Programs that open OrCAD Project files

OrCAD CaptureOrCAD CaptureVerified
OrCAD PSpiceOrCAD PSpiceVerified

Last updated: July 30, 2023

All known file formats using extension .OPJ

While OrCAD Project is a popular type of OPJ-file, we know of 2 different uses of the .OPJ file extension. Different software may use files with the same extension for different types of data.

Origin Project

We know that one OPJ format is Origin Project. We have not yet analyzed in detail what these files contain and what they are used for. We're working on it.

While we have not verified the apps ourselves yet, our users have suggested five different OPJ openers which you will find listed below.

Various apps that use files with this extension

These apps are known to open certain types of OPJ files. Remember, different programs may use OPJ files for different purposes, so you may need to try out a few of them to be able to open your specific file.

OriginOriginUser submitted
Microcal OriginMicrocal OriginUser submitted
LTspice IVLTspice IVUser submitted
Cadence/OrCADCadence/OrCADUser submitted
Origin8 ViewerOrigin8 ViewerUser submitted

Help us help others

File.org helps thousands of users every day, and we would love to hear from you if you have additional information about OPJ file formats, example files, or compatible programs. Please use the links below or email us at submit@file.org to discuss further.