[spaintech]

Hexdump, xdd, Binwalk, Binary Ninja, and Ghidra, along with a good text editor that supports hex, I use vi like this:

$ xxd /bin/ls | vi - /to open file : xxd -r /to save files

for gzip files, extract those, that is the best representation of what’s inside IMO, then look at those binary individually. Good luck!