plot shape of airfoil using x-station, y-coordinate, and cp data from excel in matlab

First, you need to import the data from Excel to Matlab. This can be done using the xlsread function. Assuming your data is stored in a file called "airfoil_data.xlsx", the code to import the data would look like this:

main.m
data = xlsread('airfoil_data.xlsx');
x = data(:,1); % x-station data
y = data(:,2); % y-coordinate data
cp = data(:,3); % cp data
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Next, you can use the plot function to plot the airfoil shape. You can simply plot the y vs. x data to get the shape of the airfoil. Here's the code:

main.m
plot(x, y);
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Finally, if you want to plot the pressure distribution (i.e. cp data) on the airfoil, you can use the contour function. Here's the code:

main.m
contour(x, y, cp);
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You can adjust the contour levels and colormap to make the plot clearer.