STEP 1: Add a new column Vertical Line , and place in the first value as 100. STEP 2: Select the entire table, go to Insert > Line Charts > Line with Markers. STEP 3: Select the chart and go to Design > Change Chart Type > Combo > Custom Combination. STEP 4: For the Vertical Line series, change To achieve this effect, add a line to your chart as explained in the previous examples, and then do the following customizations: In your graph, double-click the target line. This will select the line and open the Format Data Series pane on the right side of your Excel window. Add vertical line to bar chart 1. Select your data range, and click Insert > Bar > Bar . 2. Then go to a blank cell, here I select Cell A10 to type Y, and then go to the cell next to 3. In the two cells below Y cell, type 0 and 1 in each cell. See screenshot: 4. Go to the cell below X cell,