how can create a graphic in real time with ev adrn wsn 1z ?

I use the program serial monitor and save the hexdecimal data into a file, after I have created a program in c that extract the hexdecimal data of the axes x, y, z. I save this data into 3 different file. Now I have to convert this data in decimal and I use excel with a macro, and I create tre colum of data, finally I create a graphic. Now I'm studing for creating a graphic in real time.

I use the program serial monitor and save the hexdecimal data into a file, after I have created a program in c that extract the hexdecimal data of the axes x, y, z. I save this data into 3 different file. Now I have to convert this data in decimal and I use excel with a macro, and I create tre colum of data, finally I create a graphic. Now I'm studing for creating a graphic in real time.