Select the paragraph you want to change, or press Ctrl+A to select all text. Go to Home > Line and Paragraph Spacing. Select the line spacing you want.
Tighten the spacing for text inside a cell · Right-click inside the cell you want to change, and click Format Cells. On the right-click menu, click Format Cells ...
The most direct way to double-space in Excel is by adjusting the row height. ... Enter your desired row height (like 30 for double-spacing) and hit Enter.