How To make Excel cells expand to fit text automatically, use the AutoFit feature. First, select the column or row where the text is cut off. Then, go to the Home tab, click on Format in the Cells group, and choose AutoFit Column Width or AutoFit Row Height. This adjusts the cell size to fit the text perfectly. You can also double-click the line between column letters or row numbers to AutoFit quickly. If you want text to wrap within a cell, select the cell, go to Home > Wrap Text. These steps make your Excel sheets cleaner and more readable.