Microsoft Excel is a widely used spreadsheet application that stores, organizes, and analyzes data across a number of disciplines including education and is available for Windows, Mac OS X, Android, and iOS. Excel relates to education research, measurement, and evaluation because it functions as an efficient and effective data analysis application. [Page 638]This entry describes the basic functions and data analysis tools included in Excel and provides an overview of its statistical capabilities. This entry concludes with a list of the most commonly used formulas, examples of possible outputs, and purchase information.