SAGE Intelligence Partner report opens an extra blank workbook

Hi There

I'm pretty new to Sage Reporting. I followed tutorials to the T and am doing my first customer Outstanding Supplier Invoice report and even though I closed all Excel workbooks when I started the report,  It keeps on opening an additional empty workbook. I would close the extra workbook and save it back but the next time it runs it does it again. 

The report is just about finished but I cannot deploy it like this to the client.

PLEASE HELP!