Unable to Locate excel when try to Install

I have windows 10 Pro installed on my PC with Microsoft Office Home and Business Pro 2016. when I tried to install XLSpadlock 64 Bit version, it complains that Excel was not found. appreciate if anyone have any suggestions to fix this issue.

sorry here is the message I get when trying to install

Try to repair your Office installation, it will fix broken paths in your Windows registry.