I have used Excel for a number of years, making simple spreadsheets to automate calcuations and to work out current finances. I have also made larger spreadsheets with Visual Basic macros included within. They could populate large amounts of data on various sheets from the basic input from the user. This would save people hours of work each time not having to do this manually. Over an extended period this would save a business a lot of time and money.

Excel can and has been used in conjuction with MS Access to either import or export data for the use of the customer very easily.