COMBIgor can be download from the GitHub repository by clicking the green button "Clone or Download" and selecting "ZIP"
https://github.com/NREL/CombIgor
Install COMBIgor in your Igor Pro
Installing
Report an issue with your COMBIgor
Reporting
Learn about using COMBIgor
Learning
Update to a new version of COMBIgor
Updating
Create your own COMBIgor addons
Customizing