c# - supplement an comparison worksheet programmatically - business xp / 2003


i am only starting fiddle comparison around c# means automate creation, offer an comparison file.



i open record transform the information pierce by existent worksheets. problem i supplement new sheets?



i tried:



excel.worksheet newworksheet;
newworksheet = (excel.worksheet)excelapp.thisworkbook.worksheets.add(
                type.missing, type.missing, type.missing, type.missing);


but i next com exception googling given me any answer.




exception hresult: 0x800a03ec source is: "interop.excel"




i am anticipating someone maybe means put me out misery.



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