Home : File Types : OPJ File

.OPJ File Extension

2 file types use the .opj file extension.

File Type 1Origin Project

3.4 (18 Votes)
CategoryData Files

What is an OPJ file?

An OPJ file is a project created by Origin, a data analysis and graphing application used by various scientists and engineers. It contains all of the project contents, which includes data, 2D/3D graphs, and settings.

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Screenshot of a .opj file in OriginLab Origin 2018
OPJ file open in OriginLab Origin 2018

The OPJ file is the most common file type associated with Origin since it is used as a container for projects. You can open OPJ files with Origin and you can also open OPJ files with Origin Viewer, a free, lightweight program that allows you to view and copy information in OPJ projects.

To open an OPJ file in Origin, select File → Open..., select the ".opj" file type, navigate to the OPJ file location, and click Open.

To save an OPJ file in Origin, select File → Save project or Save Project As..., name the file, choose the save location, and click Save.

NOTE: The release of Origin 2018 included an updated unicode format for saving projects (.OPJU), which features performance advantages over the older, non-unicode OPJ file format.

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Programs that open OPJ files

Updated 1/31/2018

File Type 2OrCAD Project File

DeveloperCadence Design Systems
3.3 (10 Votes)
CategoryCAD Files

.OPJ File Association 2

CAD project file created by OrCAD, a program used for designing electric circuits, known as PCBs (printed circuit boards); saves references to files included in the project as well as project settings; usually references at least a .DSN design file; used for storing PCB design information together.

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OPJ files are saved in a plain text format, but should only be modified using the OrCAD user interface instead of a text editor.

Programs that open OPJ files

Updated 10/7/2016

About OPJ Files

Our goal is to help you understand what a file with a *.opj suffix is and how to open it.

All file types, file format descriptions, and software programs listed on this page have been individually researched and verified by the FileInfo team. We strive for 100% accuracy and only publish information about file formats that we have tested and validated.

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