program that reads file and displays the total amount for each service category.

A hotel salesperson enters sales in a text file. Each line contains the following separated by semicolons: The name of the client, the service sold (such as dinner, conference, lodging, and so on), the amount of the sale and the date of that event. Write a program that reads such a file and displays the total amount for each service category. Display an error in the file does not exists or the format is incorrect.
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