In 1966, artist Gerhard Richter began painting simple, uniform grids of colored rectangles or squares on a white background. With just one exception, 1966’s Ema (Nude on a Staircase), the color charts ...

You may have used Excel for years without delving into Styles (or stylesheets), but they can make work easier and faster—and more visually appealing. In this feature, we’re going to go over Cell ...