Spreadsheets aren't usually what you find teenagers using, more like business people or adults but there are some ways spreadsheets would be useful for a teen. I think one way is if they're trying to keep up with a sport or activity. They could put the times and dates of practices and games/meetings or maybe even use it to keep up with the people in the activity. Another way might be them using a spreadsheet for school. Teens might use it to put when they have test or when homework's due. My last way I think teens would find spreadsheets useful if they were keeping track of family budgets or savings. See there are plenty of ways teens find spreadsheets useful.
