Saving data from Serial Monitor to USB using FTDI Module

Thanks again for all the detail.

Have now changed the software serial stuff over to Serial3 as you suggested.

Am still working on saving the data to a memory stick plugged into the FTDI module.

I am using a MAX232ACPE chip to convert to serial when communicating with the DMM, would I also need to use a MAX232 chip when communicating between the Arduino and FTDI aswell?

I am sending commands to the DMM and receiving results back in the Serial monitor, I just want to save these results exactly as they appear in the serial monitor onto a USB/memory stick as a txt file or ideally an Excel document.

Thanks,