High Quality Content by WIKIPEDIA articles! SPC XL is a statistical add-in for Microsoft Excel. SPC XL is a replacement for SPC KISS which was released in 1993 making it one of the oldest statistical addons to Excel. SPC XL provides statistical analysis including Control chart, Process capability, Histogram, Pareto chart, and ANOVA Gage R R. SPC XL is compatible with Microsoft Excel 2000, 2002 2003, and Excel 2007.