public void CanOpenWorkBookCXML() { FileFunctions fileFunctions = new FileFunctions(); XLWorkbook workBook = fileFunctions.OpenWorkBookCXML(Global.testLocation, Global.fSITest_XLSM); string type = workBook.GetType().ToString(); Assert.IsTrue(workBook.GetType().ToString() == "ClosedXML.Excel.XLWorkbook"); workBook.Dispose(); }