.GPJ File Extension

Golden Software
File Type:
Grapher Project File

Having trouble opening .gpj extension? Don't panic! This page explains what gpj files are as well as suggests programs you may use to open gpj files. You can download these programs through this page.

What is a GPJ file?

Gpj file extension has Grapher Project file type, developed by Golden Software, which is associated with the "data files" category.

Grapher software, which is designed for building 2D and 3D graphs, saves its projects in files with this extension. GPJ files contain a visual presentation of the graph and the source data used to generate it as well. They are similar to Grapher’s .GRF files, but those are used to save just the visual graph without the source data. GPJ files are often used to build graphs for technical publications, presentations, previews, etc. Their structure allows users to save various types of graphs in them: from simple bars, lines, or scatter graphs to more advanced box-whisker diagrams and hi-low-close plots.

To learn how you can open the given file, read the information below.

gpj file icon
Golden Software
File Type:
Grapher Project File
Data Files

How to open GPJ file?

Double click the gpj file to open it. The file will open automatically if file associations have been correctly installed and there is a proper program on your computer; if not, file associations may be corrupted and your OS either cannot find the proper program, or you might not have one for opening the file. First, we recommend downloading our utility to fix file association errors; then, you can download any program for opening the .gpj extension from the ones suggested below. If you are certain there is nothing wrong with the file associations, you may proceed to method 2 right away; besides, if you can't make up your mind when choosing the right program, use Universal File Viewer from the last method.

Method 1: Fix file association errors

Follow these steps in order to automatically fix the gpj extension associations' problem in no time:

  • Step 1: Click on "Download Solution" to download automatic tool provided by WikiExt.
  • Step 2: Click "Start Scan" to identify all potential issues.
  • Step 3: Review scan results and click "Fix Items".

File Size: 3.04 MB, Download time: < 1 min. on DSL/ADSL/Cable

This Tool is Compatible With: Windows XP, Vista, 7, 8/8.1, 10

Method 2: Download the appropriate software

The given list provides programs which may be used for opening or converting the gpj file. Choose the proper program for your OS, and click it to start the download or proceed to the developer's website.

Programs that open GPJ files

Method 3: Use universal file viewer

In addition to the list of programs above, we recommend using Universal File Viewer. This tool can open over 250 file extensions and, most likely, it will be able to open the gpj file as well. Download Universal File Viewer for your OS.

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