packzip [options] <input_file> <output_file>
offzip [options] <input_file> <output_folder> [offset]
Purpose: To locate and extract compressed data from any binary file.
How it works:
Key Parameters:
| Parameter | Function |
|-----------|----------|
| -a | Automatically extract all found compressed streams |
| -o <offset> | Start scanning from a specific file offset |
| -max <size> | Maximum size to scan (in bytes) |
| -1 to -9 | Set compression level (for Packzip compatibility) | Offzip Exe And Packzip Exe
Typical command:
offzip.exe -a input.dat extracted_folder 0
Common operations:
offzip <input_file> <output_directory> <file_offset>
| Feature | Offzip/Packzip | 7-Zip / WinRAR | |---------|----------------|----------------| | Target | Raw deflate streams | Complete archive formats (.zip, .7z, .rar) | | Headers | Ignores/autodetects | Requires valid headers | | Use case | Embedded systems, game data | General file compression | | Error tolerance | High (extracts partial/corrupt streams) | Low (fails on corruption) | | Recompression | Maintains original raw format | Creates new archive structure | packzip [options] <input_file> <output_file>
Scenario: Modify a texture in game_data.bin which contains multiple Zlib streams. Purpose: To locate and extract compressed data from
# Step 1: Extract all compressed streams
offzip.exe -a game_data.bin extracted 0