In our example, we want to add a third data series.
The most important function of a chart that is linked to an Excel workbook is the option to update the chart according to changes in the underlying data.
When the source data for your data-driven charts is available in Excel, you can create charts directly from the Excel application.
When data in Excel changes, you can either update the charts on command or have think-cell do the update automatically.
This can be especially powerful when you combine it with Excel’s conditional formatting.
As well as creating a new chart, you can link a selected data range in your Excel workbook to an existing chart in a Power Point presentation.