Spline Interpolations in Microsoft Excel For Free with SRS1 Cubic Spline for Excel
This is a demo of a free add-in for Microsoft Excel which adds cubic spline, several other splines, and linear interpolation to Excel. The latest version of the software includes two new splines: Bessel Spline and One Way (monotonic) splines, which can be better behaved than the cubic spline in many cases.
Download the add-in from:
http://www.srs1software.com/SRS1Cubic...