Secondary bootloader product header txt file

Hi,

I am struggling to understand how to create the product header. From what I understood from the document (creation of secondary bootloader, 6.3) you need to create a text file with parameters for the image offsets etc...
Its hard to understand what needs to be in the text file to define the header. It says to enter the following parameters:

Signature: 0x70, 0x52
Version: 1234
Offset1: 00800000 (it corresponds to offset 0x8000)
Offset2: 00300100 (it corresponds to offset 0x13000)

Firstly, I think offset1 and offset2 must have mistakes as they don't correspond to what it says in the brackets. Then it says to refer to the help menu in the smart snippets toolkit for more information on how to create the product header but there is no mention of it anywhere in the user guide. I also checked the forums and there is nothing on it.

It then goes onto say :
2 Signature MagicNumber
2 Version VersionNumber
4 Offset1 Offset_image_1
4 Offset2 Offset_image_2

I have tried a few combinations and it always comes up with a reading error
I am in memory header/nvds programmer in smart snippets.

Can you clarify exactly what needs to be in the txt file? Maybe you can point me towards an example

Thanks