I have Excell 2011 but my computer opens xls files (from Excell 2003) with a File Opener that does not allow me to edit. I've tried to change to association to Excell but Excell does not appear as an available program and when I browse I can only get to Microsoft Office and then drill down to a "12" file which I cannot open or associate. I can open the xls files directly with Excell but I need to first save them and then access with Excell.

Thanks
RCaballero