Productivity software includes programs that help users create documents, spreadsheets, presentations, and databases. Examples include word processors, spreadsheet applications like Excel, and database management systems. Word processors allow editing documents and changing formats. Spreadsheets organize and calculate data in rows and columns, and are useful for tasks like tracking finances, grades, lists, and stats. Database management systems help users create and manage databases to store and retrieve information. Productivity software can be obtained through commercial purchases, shareware, freeware, or as open source code.