The correct answer is Alt + Enter.In Microsoft Excel, press Alt + Enter key to enter a new line within a cell.Step 1: ?Double-click the cell in which you want to insert a line break.Step 2: Click the location inside the selected cell where you want to break the line.Step 3: Press Alt + Enter to insert the line break.Additional InformationCtrl + Enter: In Microsoft Excel, pressing Ctrl + Enter fills the selected cells with the current entry.Ctrl + Shift: Ctrl Shift-Enter is one of the shortcuts used in Excel to perform the calculations with array formulae.