Visual Basic 2012 How to program (Sixth Edition)

(Enhanced Class Average App)The class average application of fig.4.12allowed the user to enter a set of grades then calculate anddisplay the total of the grades and the class average. Create anapp that enables the user to select a file in which to store grades.The app should allow the user to write any number of grades intothat file and it should write one grade per line. Next, modify theapp ofFig. 4.12to allow the user to specify the location and nameof a le containing grades. The app should read the grades fromthe file, then display the total of the grades and the classaverage