At last I have put together an example that shows the full range of cell style options available in SpreadsheetML. This example will show how to apply a huge variety of styles using very simple code. The video explains how to use the code and also how the code works. If you are not that interested in the code details, you can choose to skip the second half. Please note that the style code has one important limitation; it cannot be used on empty style parts. This limitation is explained in more detail in the video.