Use Define Custom Taguchi Design to create a Taguchi design from data that you already have in the worksheet. Use a Taguchi design to identify controllable factors (control factors) in your process that minimize response variation and minimize the effect of noise factors.
After you define your design, you can use Analyze Taguchi Design (Static) or Analyze Taguchi Design (Dynamic) to analyze your data.
For example, an engineer has a Taguchi design in a Microsoft Excel spreadsheet. The engineer opens the worksheet in Minitab, defines the design as a custom Taguchi design, and then is able to use Minitab to analyze the design.