Excel is spreadsheet software that allows users to create tables to organize and calculate data. It automatically calculates totals and values across cells and enables users to print neat layouts and simple graphs. In Excel, information can be input into individual cells that make up a spreadsheet. Tables in Excel are groups of cells that can contain the same or different information. Excel also allows users to format text, insert tables, choose graph types like bar, pie, column, and line graphs, and add mathematical functions to analyze and visualize data.