1b Extraction without esys

[qman]

Hi,

I am new in the coding-game, so please don't mind any mistakes.
İ have a BMW F11 2013 with a NBT unit. İ need to extract/pull my 1b.hex file to generate a fsc code. According to youtube İ need to put some files on a n usb stick and insert that in my usb entry. This is the point where İ need help. İ just can't download/pull/extract a file on my usb stick.

İf any of you could help me extract this file İnwould be really happy.

Thanx in advance