It worked! thanks so much. In retrospect I didn't realize what order and what the right amount of columns was, in which I have to arrange my data in the csv file in. It became obvious once I used the tool you mentioned "ZHistoryEditor". I arranged my data in the exact same way it is outlined in the tool in my csv file and also adjusted the format in the script accordingly, to reflect the same order and same amount of columns. And it worked. Much appreciated, thank you!