public void MSExcel2003XmlFile_AddStyle_Overwrite()
        {
            //arrange
            string             comparisonFilename  = "data/MSExcel2003XmlFile_AddStyle_Overwrite.txt";
            MSExcel2003XmlFile xmlFile             = new MSExcel2003XmlFile();
            string             styleId             = "Header";
            string             childName           = "ChildName";
            string             childAttributeName  = "ChildAttributeName";
            string             childAttributeValue = "ChildAttributeValue";

            //act
            xmlFile.AddStyle(styleId, childName, childAttributeName, childAttributeValue);
            string text = XmlDocumentHelper.XmlToString(xmlFile.XmlDocument);

            //assert
            Assert.AreEqual(Utilities.LoadText(comparisonFilename), text);
        }