For more advanced script-based extraction and re-importing, modders often move from these standalone tools to QuickBMS, another powerful tool by the same creator that automates these processes using custom scripts.
packzip.exe decompressed.bin compressed_output.bin
-z : Manually set the zlib window bits (e.g., -z -15 for raw deflate).
: Modders use these tools to decompress save files (e.g., in Darksiders
“Now me,” said Packzip.
To recompress raw data into a deflate stream compatible with the original container.