Download and unzip the compressed file: ndirutilities.zip. This contains a self-extracting executable.
Double-click the NDIRUtilitiesV3.exe self-extracting zip file. This will copy files to the C:\Cambustion\NDIRUtilities directory.
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 firstname.lastname@example.org.