How to increase the lifetime of a workbook

Hi
I keep my raw data in my workbook and that workbook analyzes the raw data, and then creates a sheet (Total Sheet). Analysis workbook is ready for only up to one year and I would like to stay it that way. But now I want to add it up to 2 or 3 years (analysis workbooks) jointly to get one permanent file in a new workbook.
In a word I have to insert Analysis2009 with Analysis2010 as well as Analysis2011. All the data I need to duplicate are in rows below each other. The range will be the same.
Need your help. Thanks in advance.
