This is a project that creates a line graph using the MatPlotLib library.
It uses three axes values.
A primary x axis.
A primary y axis.
A secondary y aixs.
It draws a line graph according to the values of the primary x axis and the primary y axis from the excel file the code reads from.
It then draws a fill line graph according to the values of the primary x axis and the secondary y axis from the excel file the code reads from.
It doesn't display the label of the secondary y axis.