Style in Excel 2007
You can make a worksheet more visually appealing and easier to read by centering text across multiple columns. Often you do this by merging and centering the merged cells, but it is not the only option.
Color code is a perfect way to identify content and draw an attention to it. In Excel you can easily change colors of one or more spreadsheet tabs.
This enables you to select a different font and font size for your worksheets.
This tip describes how to place into one cell both column and row header known as elbow.