You would notice that the line graph and scatter plot chart curves are different. However, these charts are static. You could also consider creating Dynamic charts in Excel. By doing this ...

Click the Switch the Rows/Column button to place the Product column in the table on the vertical axis ... Close the Format Data Series pane. Click the chart plot area and then click the Design ...

One way to improve your spreadsheet is to present data in chart form, and Excel is a great program for doing just this.