This document provides instructions for performing regression analysis in Excel. It outlines the steps to: 1) ensure the Data Analysis add-in is installed, 2) select Regression from the Data Analysis tools, 3) select the data range and specify the options, 4) view the summary output table, 5) generate a chart with the regression line, 6) forecast new values using the regression equation, and 7) calculate the mean absolute deviation (MAD) from the residuals table.