Worked on the FoleyLab/data_repository to enhance data-layer reliability and coverage for CO spectroscopy datasets, focusing on the Pittroff-Davenport-Landes collections. Implemented ingestion, normalization, and ongoing maintenance of CSV-based data, including initial data loads, filename standardization, and regular updates for both CO overtone and fundamental datasets. Added new C13 and C12 fundamental data, ensuring data integrity through full-line replacements and cleanup. Emphasized data management best practices to improve data quality and enable reproducible analytics for downstream research. The work reduced manual maintenance and broadened dataset coverage, supporting more robust scientific analysis and consistent data workflows within the repository.