If an API export, CSV, or JSON file has inconsistent fields, duplicate rows, broken types, or unclear missing values, I will turn one bounded dataset into a clean, documented delivery.

Included scope: • One buyer-authorized API response, CSV, or JSON dataset with up to 10,000 records and 30 fields. • One agreed schema and field dictionary. • Deterministic type normalization, duplicate handling, missing-value report, and up to five validation rules. • Cleaned CSV or JSON output plus a separate exceptions file. • Reproducible validation summary, source assumptions, and handoff notes. • One revision for a correction to the originally approved schema or rules.

This service does not scrape restricted sources, bypass access controls, enrich people with sensitive data, make regulated decisions, or silently discard records. Buyer data must be authorized and minimized. Do not send passwords, API keys, payment data, health data, identity documents, or unrestricted production credentials.