QI Macros® for Excel was the first Excel-based Quality Improvement solution more than 20 years ago, and remains the most powerful, easiest to use, most affordable SPC package to implement throughout your organization. Highlight your data in Excel, select the chart or tool you need… that’s it! The software creates the chart and indicates in-control and out-of-control points automatically. QI Macros can even choose the correct chart automatically.