Know what you can trust before you analyze. I will profile one CSV or Excel dataset (up to 50 MB) for missing values, duplicates, invalid types, inconsistent fields, and potential outliers. You will receive a reproducible Python notebook, an issue log showing affected counts and severity, and a short prioritized cleaning plan. I preserve the original file and document the checks so your team can repeat them. This service covers the audit and plan. Full cleaning, data integration, dashboards, and production pipelines can be scoped separately. To begin, send the dataset, a data dictionary if available, and the business questions you want it to answer.