all the included examples have the same ID "44-55-66".
You can change at will.
open the file with a hex editor and look for the ID (44-55-66 for this examples) in the reverse direction 66 55 44 (with spaces) edit with the ID you want (remember the reverse order)
for example: Mac xx xx xx 12 34 56 will be 56 34 12 in the file.



