Worked on improving data quality in the sdss/sdssdb repository by addressing formatting issues in a key CSV file. Focused on data cleaning and file formatting, the developer removed a trailing semicolon, eliminated unnecessary spaces, and deleted an empty line at the end of aqmes-dark_10x4-regular.csv. This targeted bug fix reduced parsing errors and minimized the need for manual cleanup by downstream users. Using skills in CSV manipulation and data hygiene, the changes enhanced the reliability of data ingestion pipelines and improved the overall user experience for data consumers relying on clean, well-structured files for their workflows.