Microsoft Excel isn’t just for organizing and maintaining spreadsheets; Excel contains a powerful graphing component that can make dozens of different dynamic graphs that update automatically when your spreadsheet updates. If you have more than one data type in a graph (for example, volume and weight), you may want to plot the different data types on their own axes. Excel 2007 makes this process possible by allowing you to add a secondary axis to your chart. Tips Warnings Writer Bio

How to Plot a Secondary Axis on Microsoft Excel - 51