Issue with installation

[Chris Eichrodt]

I'm in the process of installing CoolProp v6.4.3.  I have Microsoft Office 365 and Microsoft 2021 installed on two computers.  Each time I go to install CoolProp I get an error message, " Excel not installed Excel does not appear to be installed on this system. The addin files will be copied to your system, but you will not be able to use the addin unless you install Microsoft Excel." 

Any thoughts or suggestions?  

[Ian Bell]

Possibly something has changed in excel such that the installer doesn't find it automatically.  No idea what though. Haven't heard other reports of this behavior, so it sounds like something particular to your computer.