Hi, I've been trying to use the Fourier Transform analysis function in Excel though have become a little unstuck. I get as far as entering my data series though receive an error message saying my data needs to be to the power 2, no matter how many pieces of dater I enter. So far I have only been able to enter either 16 or 32 fields. Am I doing something incorrect? Or is it a result of lack of understanding of the FFT that is resulting in this? Any help or advise would be greatly appreciated.

Aaron