Command or Script to Automating Excel Add-IN for Excell 2016

Hello All, I am fairly new to scripting and would appreciate your help automating the Installation of an Excell Add-IN (.xll file ).
The default package install puts the Add-IN in a folder on the c: drive (C:\Add-IN). The default installation does not insert the Add-In into the Excel spreadsheet and it will require a manual process for the end users to browse to the folder and then load the Add-IN. Unfortunately, this is not acceptable for a large number of clients. It would be greatly appreciated if you could share with me the best way to automate this last step or any tips and tricks that may have worked in the past. Thank You

I’d suggest searching on google, etc for general scripting methods of achieving this via powershell, vb or batch scripting. Once you’ve got a script, then we can help you get that running through BigFix.