Running macro within vba project from Matlab

Hi, I'm using this script in matlab, it works perfect:

excelObject = actxserver('Excel.Application');
excelObject.Workbooks.Open('C:\Test.xls');
excelObject.Run('Module1');

Now this has the macro saved inside the workbook so it can easily find the macro and run it.

I have a 'excel add-in' which is stored in the add ins section of Office, it contains a macro that I want to run using matlab. How can I refer to this macro because whenever I run it matlab says it cannot find the macro

Thanks,