Microsoft Excel is a spreadsheet program that is part of the Microsoft Office Suite. It allows users to create workbooks containing worksheets with rows and columns to input and analyze numeric data using formulas and functions. Excel provides toolbars, menus, and a worksheet area to enter and manipulate data in cells. Common functions include AutoSum to automatically sum ranges, average to calculate the mean of data, and filtering to sort or narrow data. Charts can also be inserted to represent data graphically with horizontal and vertical axes.