Turn messy spreadsheets into reliable, analysis-ready data.
I provide professional Excel and CSV data cleaning, validation, and quality assurance, combining applied data analysis experience with transparent documentation.
My $35 service includes:
Cleaning one Excel or CSV file (up to 300 rows and 8 columns).
Identifying duplicate records and inconsistent values.
Standardizing dates, formats, categories, and labels.
Detecting missing or invalid values.
Delivering a cleaned, editable dataset.
Providing a concise quality assurance log explaining the changes.
One revision within the agreed scope.
Delivery: Within 48 hours after receiving the complete dataset and requirements.
What I need from you: Your Excel/CSV file, an explanation of its purpose, and any specific validation rules. Please anonymize sensitive or personal information before sharing.
Important: Ambiguous values will be flagged rather than modified without confirmation. Complex data matching, web scraping, advanced statistics, and larger files require a separate quotation.
My focus is simple: accurate data, transparent methods, and deliverables you can confidently use.
