Excel - Easy Project

Hello, I have two sets of data each with twenty-two samples (in separate excel files). Plus another sheet of data to be used in formulas. 1. Import all the separate excel files into two excel sheets. 2. Column 1 is Flexure Load (N), Column 2 is Flexure Extension (mm) [repeat for all samples] 3. Normalize the data (each start at 0,0) (subtract/add down the column) 4. Make composite graphs of Flexure Load v Flexure Extension for all samples 5. Column 3 is Stress (Load/(Width*Height) - Width/Height from supplied sheet - [repeat down column & normalize] 6. Column 4 is Strain (Length-(Length-Extension))/Length - Length from supplied sheet - [repeat down column & normalize] 7. Make composite graphs of Stress v Strain for all samples 8. Repeat for all 22 samples x 2 sets of data 9. In separate table find for each sample: Ultimate Load (max(column1)), Failure Load (the last entry in Column 1), Stiffness (slope of the linear region of the graph) and its rsq -- Best solution for this is making a macro), Ultimate stress (max(column3)), Failure Stress (last entry in column 3), Modulus (slope of Stress/Strain linear region of each sample and its rsq)