How can a doctor use Excel?

They could use it to keep lists of payments made to them by patients. They could use it to keep other details on patients. They could use it for some of the financial data that is needed to run their business. They could use it to keep track of amounts of pills they use or doses for things they administer to their patients. They could keep track of the amount of patients they deal with. They could keep track of the amount of times certain illnesses are occurring. There are many other ways they could use a spreadsheet.