python run-time error "method is not callable"

Hi All my aim is  to get the data from  the excel and execute the method which given in the excel but am facing the Python Run-time Error method cannot be callable for the lines 4 and 6

def ReadDataFromExcel():
  xl = Sys.OleObject["Excel.Application"]
  book = xl.Workbooks.open("C:\\DriverSheet.xls")
  TCSheet = book.Worksheets("TestCases")
    #TCSheet = WorkBook.worksheets("TestCases")
  TSSteps = book.Worksheets("TestSteps")
  
  TCRows =   TCSheet.UsedRange.Rows.Count
  for i in range(2,TCRows):
    if TCSheet.cells(i,2).Value == "Yes":
      SlNo = TCSheet.cells(i,1).Value
      Module = TCSheet.cells(i,2).Value
      TestCase = TCSheet.cells(i,3).Value
      Duration = 0
      TSRows = TSSheet.UsedRange.Rows.Count
      for j in range (2,TSRows):
        if((TSSheet.cells(j,1).Value == TestCase) and ( TSSheet.cells(j,4).Value == "Yes")):
          Flag = Flag+1
          if Flag ==1:
           Report.CreateTestCaseReportHeader(TestCase)
        TSCols =   TSSheet.UsedRange.Columns.Count
        TSData = ""
        for k in range (5 , TSCols):
            TSData = TSData & TSSheet.cells(j,k).Value & ";"
    Parameter = Split(Tsdata,";")
    BeforeTime = aqDateTime.Time()
    Execute.TSSheet.cells(j,3).value
    AfterTime = aqDateTime.Time()
    Duration = Duration + aqDateTime.TimeInterval(AfterTime,BeforeTime)

Can anyone help me out