Create Clone Copy Of Spreadsheet For A New Year

I have an Excel spreadsheet containing a large amount of formulas applicable to 2009. I want to create a duplicate workbook for 2010. I want to maintain all cell formatting, ie A1=sum(whatever) without retyping it all. When I attempt to use copy-and-paste (or paste special) from 2009 to 2010, the cell values maintain a reference to the 2009 workbook. For example on 2010 workbook, A1=[2009]sum(whatever). Therefore the values from 2009 print in cells. I only want to maintain cell formula formatting, not a reference back to 2009 workbook.