Running macro from excel in matlab

Hi,

I am trying to run a macro in excel through matlab using following commands

ExcelApp = actxserver('Excel.Application');

ExcelApp.Workbooks.Open(fullfile(pwd,'\INPUTandOUTPUT.xlsm'));

retVal = ExcelApp.Run('Macro1');

Quit(ExcelApp);

delete(ExcelApp);

% ExcelApp.release;

Here the excel gets locked and is not writable anymore.

I have some results to be written in this file post completion of my run.

Can anyone help me resolve this issue.