This document provides an introduction to Microsoft Excel and describes its basic elements and functions. It discusses the purpose of electronic spreadsheets and outlines four lessons: [1] an overview of Excel and common spreadsheet elements; [2] elements common to Excel and Word windows; [3] unique Excel elements like cells, columns, rows, and tabs; and [4] working with spreadsheet cells. The document guides the user through opening and downloading an Excel file and exploring values and formulas in its cells.