SPC XL supports advanced control chart features. For example, it (1) helps you control how out-of-control checking is performed and (2) enables you to add data to an existing control chart.
Supported Control Chart Types:
SPC XL integrates directly within Microsoft Excel. After installation, you will have a new menu item on the Excel toolbar entitled "SPC XL".
All of the control charts in SPC XL can be updated without having to recreate the chart.
All of SPC XL's analysis results in a standard Excel workbook that can be shared with anyone who has Excel.