The File Extensions Database


.JNB File Extension

  • Developer by: Systat Software Inc.
  • Category: Spreadsheet and workbook Files

What is an .JNB file?

.JNB is SigmaPlot workbook

The jnb file extension is maily associated with SigmaPlot, a graphing and spreadsheet program, developed by Systat Software Inc. for Microsoft Windows operating system.

The jnb file is a workbooks created and used by the application.


How to open:

Use SigmaPlot program to open and work with .jnb files.

How to convert:

SigmaPlot supports expot to scalable vector graphics, such as SVG to SWF.

How to solve problems with JNB files

  • Associate the JNB file extension with the correct application. On :
    Windows: Right click on any JNB file and then click "Open with" > "Choose another app". Now select another program and check the box "Always use this app to open *.JNB files". Mac: Right click (or Ctrl-click) the JNB file, then click "Open with" > "Other...". Then choose another program and check the "Always Open With" box. Linux: Right click on the file, and select "Open with" and choose another program. iPhone: Tap the file. If you do not see an app to open the file, then tap Share "Share" and choose an app. Alternatively, save the file. Then open the Files app Files app. There long-press on the file, then release your finger. You will see a black menu bar. Then tap "Share" and select an app. Android: Tap the Settings icon on your smartphone, then tap on the Apps section. There tap the Options icon in the top right-hand corner of the screen to change the default apps.
  • Update your software that should actually open .JNB is SigmaPlot workbook. Because only the current version supports the latest JNB file format. Search, therefore, e.g. on the Systat Software Inc. manufacturer website after an available .JNB is SigmaPlot workbook update.
  • To make sure that your JNB file is not corrupted or virus-infected, get the file again and scan it with antivirus software.