Personal.xlsb Workbook Keeps Opening

Haytham Amairah This unfortunately did not work for me, because my Personal.xlsb file was "read only" access. It wouldn't save that it was "hidden" even though the file wouldn't just show up like a regular Excel file. I had to save it under a different directory (I used Downloads for easy access), closed out Excel, deleted the read only file in the XLStart folder, and moved the new editable personal.xlsb file into the XLStart folder so it would open in the background instead of opening every time I opened an Excel File. I couldn't do a Save As and just overwrite it, because it had to be open to do that, and it wouldn't let me save over an open document. 

Thank you for the feedback, because you actually gave me the "Well duh" moment I needed to do a save s to a different directory. LOL!