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| 2015-05-20 07:39:08 -0600 | asked a question | i run some algorithm with different input each time , how to save it excel sheet without deleting the previous data I use ("std::ofstream faaout("file_name.xls");") but every time I run the code it replace it with new value , how to make excel sheet that same all the data came form different input in one file ? |