Excel can be used to create and analyze data in spreadsheets. A spreadsheet uses a table format with columns and rows to organize data into individual cells. Cells can contain numbers, text, formulas, or functions. Excel offers tools to automatically calculate totals, generate graphs and charts, and format or print tables. Common graph types include pie charts, line graphs, column graphs, and bar graphs. Buttons in Excel allow users to perform tasks like inserting tables, charts, formatting options, and printing.