This document provides an introduction to using Microsoft Excel spreadsheets. It discusses the layout of an Excel workbook and worksheet, including cells, columns, rows, and other interface elements like the ribbon and formula bar. It explains how to navigate within a worksheet using keys, buttons and the mouse. The document also covers entering different data types into cells, customizing worksheets by renaming tabs and inserting new sheets, and resizing cells to fit text. Formulas can be added to cells from the formula bar and auto-filled into adjacent cells.