Labels are any combination of letters, numbers, and spaces. Labels have no numeric value. A label that is too long for the width of a cell floats across the cells to its right, as long as the cells don't contain any information. If the cells aren't empty, the label is truncated, or cut off. By default, labels are left-justified.
Entering text labels into the worksheet is easy. Just click into a cell to select it and start typing!