How to solve Exercise in colab?

When I click the code of exercise on collab then an error is shown there. For Data Analysis exercise 1.

did you run the import numpy
or import pandas cell first

Yes,
But read csv file do not work.

did you import/upload the csv file to colab

How to do that?
I have saved it in the data . But it shows error.

what is the error message your are getting?
hopefully you didnt forget using parentheses"" when entering path to file