I will clean validate and format your CSV data

New Zealand

I speak English, Chinese

Python Tools and Data Cleanup

I turn small, repetitive tasks into practical tools. Services include Python scripts and bug fixes, CSV and JSON cleanup or conversion, and focused offline HTML tools. Deliverables can include a worki...
About this Gig

Turn a messy CSV into a clean, consistent file with a clear record of what changed.


This starter service covers ONE CSV with up to 100 data rows and 20 columns, using up to THREE specified cleaning rules.


Examples: trim unwanted spaces; standardise an agreed date or number format; remove duplicates using your chosen key; flag missing or invalid values.


You receive:

- The cleaned CSV

- An issue report with affected rows and reasons

- A summary of applied rules and row counts


Your original is preserved. Ambiguous values are flagged, not guessed. Identical-looking rows are removed only under your agreed duplicate rule.


Provide the file, column names, rules and a sample of the desired result. Please remove passwords and unnecessary personal or confidential information. Message me with a non-sensitive sample before ordering if the scope is unclear.


Includes one correction round against the agreed input and rules. Web scraping, contact enrichment, complex Excel formulas, larger datasets and reusable scripts require a separate quote.