Hi. I really need a help. I have an excel data and then I use a Real FFT vi to get the frequency spectra of data/wave. Now, I want to use windowed FFT with the same excel data, but was fail. Input for real FFT is a vector, while input for windowed FFT is a point. Can someone help me how to use the excel data for input of windowed FFT?; or maybe someone can give me an advice using "spectral measurement". Thank you in advance.