public void TestWrite() { string file = Path.GetTempFileName() + ".xls"; using (ExcelDocument doc = ExcelDocument.CreateDocument()) { ExcelWorksheet worksheet = doc.CreateWorksheet("Test"); ExcelCell cell = worksheet.GetCellAt(new ExcelCellName(new ColumnLetter(Letter.A), 1)); cell.Text = "Hello World"; ExcelFormatter formatter = worksheet.GetFormatterAt( new ExcelCellName(new ColumnLetter(Letter.A), 1), new ExcelCellName(new ColumnLetter(Letter.C), 3)); formatter.Background = Color.Red; formatter.Foreground = Color.Yellow; formatter.BorderColor = Color.Blue; formatter.Font = new Font("Courier New", 12, FontStyle.Underline | FontStyle.Bold); formatter.Merge(); formatter.ColumnWidth = 100; formatter.RowHeight = 100; Assert.AreEqual(Color.FromArgb(0, 255, 0, 0), formatter.Background); Assert.AreEqual(Color.FromArgb(0, 255, 255, 0), formatter.Foreground); //Assert.AreEqual(Color.FromArgb(0, 0, 0, 255), formatter.BorderColor); TODO doc.Save(file); } }