System Requirements

The NDIR Utilities require Microsoft Excel. Excel & Office versions from 2000 to 2016 inclusive are supported, on Microsoft Windows XP onwards.

Current Version

The current version of the utilities is 3.0.

Installation Instructions

  1. Download and unzip the compressed file: This contains a self-extracting executable.
  2. Double-click the NDIRUtilitiesV3.exe self-extracting zip file. This will copy files to the C:\Cambustion\NDIRUtilities directory.
  3. The NDIRhelp.chm help file should be automatically opened when the file transfer is complete. Follow the installation instructions on the "Installation" page to activate the Excel add-in.


Comments and suggestions for improvements to the NDIR Utilities are always welcome.

Please address these by email to the Cambustion Product Support Group at