I will do excel and CSV data cleaning, deduplication and validation

Messy spreadsheets cost hours and cause wrong numbers. I clean and validate your Excel or CSV files with documented, repeatable steps, so you can see exactly what changed and why.

What you get:

- Duplicates removed by rules we agree on in advance

- Consistent formats for dates, numbers, text case and IDs

- Empty fields, broken rows and invalid values fixed or flagged

- A change log listing every applied rule

- Validation checks for emails, dates and required fields (Standard and Premium)

How I work:

1. You send your file or a redacted sample

2. I confirm scope, rules and price before starting

3. You get the cleaned file plus a short report, reproducible instead of a black box

Based in Germany with 20+ years of business and e-commerce experience: I know order, product and customer data from practice. Communication in English or German. Your data stays confidential and is deleted after delivery on request.

Not included: collecting new data, web research, lead or contact lists.

File larger than the package limits? Message me first and I will send a realistic custom offer.