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This new release is features-rich, as we added several new functionality: trend analysis (for linear, polynomial, logarithmic, and exponential trends), histograms, spectral analysis (discrete Fourier transform), and more. We also revised the existing correlation function (XCF) to extend support for new methods (e.g. Kendall, Spearman, etc.), and added a statistical test for examining its significance. Finally, NumXL now includes a new unit-root and stationarity test: the Augmented Dickey-Fuller (ADF) test.