The reason for the Export
is to generate a self-contained example for you to experiment with. If you evaluate the code provided and follow the steps, you will see that a plot is generated.
If no plot is generated with your CSV file then it may not be in a form that can directly be plotted. You have provided no details on the format of your CSV file, does it have a header row, how many columns, which columns need to be plotted, are the columns strings that need to be converted to numbers, .....???
Before trying to do anything in the cloud, make sure the code works locally first. What is the result of evaluating
data = Import["path to your file", "CSV"]