In Excel you aren’t restricted to having your whole cell full of text formatted in the same way.  You can have individual formatting on different characters within a cell.  (This only works with cells that have text only!) .  This is a nice way to emphasize a point you are trying to make or jazz up a workbook- why not??? Here is how

• Select the cells you want to format in the usual way
• Use the usual formatting controls to format your individual characters

Here’s a couple of examples:-