The difference between 2D and 3D plot in Excel is that the 2D plot displays the given dataset in a 2-dimensional plane, with X- and Y-axes. On the other hand, the 3D plot displays the given dataset in a 3-dimensional plane, with X-, Y-, and Z- axes. For example, the table below lists two independent variables, p and q, values. And the variable r varies with the variables p and q based on the specified equation, making it a dependent variable. Then, here is how we can make a 3D plot for the above data. • Step 1: With the entire dataset in the range A3:D14 selected, choose the Insert tab → Insert Waterfall, Funnel, Stock, Surface, or Radar Chart → 3-D Surface chart. The above step will insert the required Excel 3D plot. • Step 2: Drag the chart borders from the corners to expand it and view all the series names, p, q, and r, in the Depth axis. • Step 3: Double-click the Chart Title element in the plot area and update it, as depicted below. On the other hand, the steps to prepare a 2D plot for the given data are as follows: • Step 4: Select the entire dataset and choose the Insert tab → Insert Line or Area Chart → 2-D Line with Markers chart. The inserted 2D plot will appear as shown below. And the final 2D chart with the updated chart title will appear as depicted below. The first chart is a 3D plot representing the three variables in a 3-dimensional plane. And it helps review the areas in the same value ranges while determining the top combinations between the given datasets. On the other hand, the 2D plot shows the three variables’ data in a 2-dimensional plane. And it does not help determine the best combinations between the given datasets.