Title: Change the data in an existing chart - PowerPoint
Headings: Change the data in an existing chart
Change the data in an existing chart
Change chart data on a slide
What if the "Edit Data" buttons are unavailable?
Insert a chart into a PowerPoint presentation

Content: Make the changes you want. They will be reflected in the chart in PowerPoint. Change chart data on a slide
On the slide, select the chart that you want to change. The Chart Tools contextual tab appears at the top of the PowerPoint window. If you do not see the Chart Tools tab or the Design tab under it, make sure that you click the chart to select it. Note: The Design tab under Chart Tools is not the same as the default Design tab in PowerPoint. The Chart Tools tab appears only when a chart is selected, and the Design, Layout, and Format tabs under it provide different commands that relate only to the selected chart. Do one of the following: To edit an embedded chart (created in PowerPoint by using Insert Chart ):
Under Chart Tools, on the Design tab, in the Data group, click Edit Data.