Developed MSI extraction support for the onekey-sec/unblob repository, enabling automated processing of Microsoft Installer files within enterprise data workflows. Leveraging Python, the work integrated 7z for archive extraction and introduced custom parsing of Compound File Binary Format (CFBF) headers to accurately compute archive sizes. The implementation included full traversal of the Compound File FAT, supporting both standard and padded MSI files, and addressed archives exceeding typical FAT limits. This enhancement broadened unblob’s data ingestion capabilities, reduced manual intervention for MSI-bearing artifacts, and improved automation in software packaging and asset discovery. Documentation outlined future migration paths to Python-based tooling.