You can free download Data Curve Fit Creator Add-in 2.61 now:
Data Curve Fit Creator Add-in is an easy-to-use data analysis add-in for Microsoft Excel. It adds curve fitting, interpolation, and data smoothing functions to Excel. Curve fitting functions include polynomial fits and a versatile local regression (loess) function. Interpolations include linear, cubic spline, bessel and monotonic 'constrained' splines, as well as a 'flexible spline' that allows you to specify the slope at each data point. Data smoothing functions include moving average, median filter, and a Gaussian smoothing filter. Data Curve Fit Creator Add-in also includes automatic sorting and data repair functions.
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Keywords: Excel, Curve Fit, polynomial, interpolation, spline, data analysis, regression, add-in, data, smoothing, averaging, smoothing, gaussian, median, Shareware, Business, Calculators & Converters, SRS1 Software, LLC, Data Curve Fit Creator Add-in
Recent Changes: Added two new spline interpolation functions: bessel and oneway (monotonic) splines. Also added support for date-time data interpolation.
Install Support: Install and Uninstall
Supported Languages: English
Additional Requirements: Microsoft Excel 2000 or later