Hi All, I was expecting the code below to work. Basically I casting a System.__ComObject into a Range Interface ( https://msdn.microsoft.com/en-us/library/microsoft.office.interop.excel.rang...). There should be an indexer but I can't seem to get it to work? Thanks, Phat from PyExcel import PyAddin import Microsoft.Office.Interop.Excel as Excel app = Excel._Application(PyAddin.CurrentInstance.ExcelApp) selection = Excel.Range(app.Selection) In [5]: selection[1,1] --------------------------------------------------------------------------- TypeError Traceback (most recent call last) <ipython-input-5-bb1b652c6740> in <module>() ----> 1 selection[1,1] TypeError: 'Range' object is not subscriptable In [6]: selection.Cells[1,1] --------------------------------------------------------------------------- TypeError Traceback (most recent call last) <ipython-input-6-f8b14ac4d116> in <module>() ----> 1 selection.Cells[1,1] TypeError: unindexable object In [7]: selection.Cells(1,1) --------------------------------------------------------------------------- TypeError Traceback (most recent call last) <ipython-input-7-e8b900b98026> in <module>() ----> 1 selection.Cells(1,1) TypeError: object is not callable