Step1: To create a simple chart from scratch in PowerPoint, click Insert > Chart and pick the chart you want.
Step2: On the Insert tab, in the Illustrations group, click Chart.
Step3: Select the type of chart that you want and then click OK.
Step4: Edit the data in Excel 2010.
Step5: When you are finished editing your data, you can close Excel.
Step6: Click the File tab and then click Close. The chart in PowerPoint is automatically updated with the new data.