QI Macros is an affordable, easy to use add-in for Excel. It installs a new tab on Excel's menu and allows users to effortlessly draw control charts, pareto charts, fishbone diagrams, histograms and much much more. QI Macros makes it point and click simple to create a chart and with its built in data analysis rules, it can even determine the right chart for your data. No more control chart decision trees. Compatible with PC and Mac. Download a fully functioning 30 day trial on our website.