Marks the specified style as deleted, so it can no longer be applied to cells.
A Style object that is a cell style to be hidden in the collection.
A hidden style object is not deleted from the workbook's collection of styles, but this style can no longer be applied to cells. If there are cells formatted with a style that you then hide, the Normal style (StyleCollection.DefaultStyle) will be automatically applied to that cells. If you try to apply a hidden style to cells in code, an exception occurs.
A hidden style object can be accessed and modified in code. To restore a hidden style in the collection, use the StyleCollection.Unhide method.