1. The problem statement, all variables and given/known data Use a spreadsheet to determine the F.S. of the data given in Fig 6 See attached for Fig 6 2. Relevant equations N/A - Use the Fourier Series tool of MS Excel. Tools > Data Analysis > Fourier Series. If you don't have the Data Analysis tool loaded you can load it by going Tools > Add-ins > Analysis Tool Pack. 3. The attempt at a solution My attempt at the solution is attached, but my results don't match the results in my course notes. I was wondering if someone could see where I am going wrong. I open a new excel spreadsheet, enter the data of fig 6 in exactly the same cells. Then I run the Fourier Analysis tool, my data range is cells A2-A9 and the output range is cell D2.