By default, it shows a chart as per your data. You need to convert it to a line graph. For that, click on the Chart, expand the Chart type drop-down menu, and select something under the Line label.

In order to produce a line graph, data is required. The data often comes in the form of a table. To create a line graph: Look for the largest frequency in your table.

To add more data to the Y axis in a line chart, add additional numbers in cells below your existing data. Right-click the chart, choose "Select Data" and highlight all entries in the single column.

Click the "Insert" tab at the top of the window, then click on the line graph icon — it looks like two zigzagging lines with data points on them. 4. Select the chart style that you prefer from ...