Alternatively, if this file is from a known firmware update tool, the list likely contains package names like:

file "aftool-bbk-5.1.31 pkg-unspt-list.bin" strings "aftool-bbk-5.1.31 pkg-unspt-list.bin" head -c 1000 "aftool-bbk-5.1.31 pkg-unspt-list.bin" | cat -v If you see readable package names, redirect to a .txt file:

mv "aftool-bbk-5.1.31 pkg-unspt-list.bin" temp.gz gunzip temp.gz cat temp Or if it's lz4 compressed:

It sounds like you’re referring to a file named aftool-bbk-5.1.31 pkg-unspt-list.bin — likely from an (Amazon Firmware Tool) package related to BBK (a hardware vendor for e-readers/tablets) and a list of unsupported packages.

com.amazon.kindle.otter com.android.chrome com.amazon.platform ... Just let me know what OS you're on and whether you can run strings / hexdump .