> I decided to write another Python script to save the packet data with offsets. This way it would save the file test1 skipping 1 byte from the packet, test2 skipping 2 bytes and so on.

There is a useful tool called ‘binwalk’ that goes through a binary offset by offset looking for signatures like this. Don’t know if it would’ve worked here, but it’s pretty awesome for finding various data formats hidden in files, and was originally made for analyzing firmware files.