Spreadsheets, also called worksheets, allow for the creation and organization of tables and data. Most spreadsheet editing is now performed using computer software, such as Microsoft Excel or Apple Numbers. While you could feasibly create a spreadsheet for anything, there are certain types of spreadsheets commonly used to provide such versatility.
While it may be true that some of the things mentioned above could be done in a word processor, spreadsheets have a huge advantage over word processors when it comes to numbers. It would be impossible to calculate multiple numbers in a word processor and have the value of the calculation immediately appear. Spreadsheets are also much more dynamic with the data and can hide, show, and sort information to make processing lots of information easier.