This document discusses the importance of formatting in Excel. Proper formatting makes data easier to read and understand. It discusses using color coding to distinguish between labels, numbers, and formulas. Formatting cells allows applying styles using the Format Cells box or Ctrl+1. Conditional formatting can automatically highlight numbers that meet certain conditions, like making gross margins below 40% bold and red. Overall, the document stresses that proper formatting is as important as the substance of a model for effective communication.