We've just talked about features that help you create the layout, or structure, of a table. But you also want your text to look good, and that's why it's important to understand how text attributes and text alignment are applied to table cells. Basically, things are done the same way you would do them in a document. Keep in mind that each cell functions independently of the others and can be formatted separately.
When you want to apply a broad brush and format elements of the entire table, you use the Table tab of the Table Format dialog box.
To format a table
Position the insertion point in the table. If you don't, you won't be able to open the Table Format dialog box.