public void TestPrintAreaRemove() { HSSFWorkbook workbook = new HSSFWorkbook(); NPOI.SS.UserModel.Sheet sheet = workbook.CreateSheet("Test Print Area"); String sheetName = workbook.GetSheetName(0); String reference = sheetName + "!$A$1:$B$1"; workbook.SetPrintArea(0, 0, 1, 0, 0); String retrievedPrintArea = workbook.GetPrintArea(0); Assert.IsNotNull(retrievedPrintArea, "Print Area not defined for first sheet"); workbook.RemovePrintArea(0); Assert.IsNull(workbook.GetPrintArea(0), "PrintArea was not Removed"); }