INTERA - In-SITU troll plotting

I have some files that i need plotting up in an excel spreadsheet and when we download new data from the instruments, the data needs to be appended to the spreadsheet and plotted on a plot. The attached VuSitu file is the raw data that we get from the instruments and the RRIG_Aqua TROLL.....xls file is the type of chart that we woudl like to see. Would also like to see a derivative calculation in the background.