Hi, Thanks for your reply.
The file is as follows: Citroen.Update_Setup_0.1.24.exe
The Citroen instructions instruct me to:
Download the Citroen Update tool via PC. (Which I assume is what this file that I am trying to load is). This tool will prepare the USB stick that you need to use in your vehicle. Just launch it and follow the instructions on the screen. Once the USB is stick is ready, you can do the installation in your vehicle. You need to have administrator rights to install the "Citroen Update" tool on your computer.
Thanks again for your help.
Hope above makes sense.
Thanks
Ken Nice