Get a usable cleaned file plus separated issue and duplicate records, so you can see what changed and reconcile every source row.

Starting at $150 includes one CSV or XLSX file with up to 5,000 rows and 20 columns, up to three cleaning or validation rules, clean/error/duplicate outputs where applicable, reconciliation counts, one reusable Python script for the agreed schema, and a short run note.

PF03 is a self-initiated anonymized demonstration. Its 21-row sample produces 8 valid rows, 11 error rows, and 2 duplicate rows, with three outputs, a summary, and seven tests. Those figures describe only the sample dataset; they are not a paid-client result or a promise about your data.

Send a sanitized sample, the expected columns, and your key rules so I can confirm the starting scope.

• Rule specification for types, required fields, duplicate keys, missing values, and output schema

• Cleaned output in the agreed CSV/XLSX format

• Error and duplicate outputs when applicable

• Source, clean, error, and duplicate reconciliation counts

• Reusable Python script and a concise run note

1. Sanitized sample plus total file, row, and column estimates

2. Expected output schema and file format

3. Cleaning rules, duplicate key, and missing-value policy

4. Date, number, and encoding details with valid and invalid examples

External API integration, database access, web crawling, authentication, server deployment, OCR, manual research, password recovery, unsupported macros, paid-source enrichment, and statistical analysis require separate scope. Unusual schemas, very large cells, formulas, or formatting requirements must be reviewed before purchase.

The starting service includes one consolidated revision round. For 14 calendar days after delivery, I correct defects reproducible with the agreed sample, schema, and rules at no added charge. New files, schemas, or business rules are separate scope.