I will clean, merge and organize your excel or CSV data

Poland

I speak English

Senior FullStack Engineer Cloudflare Email AI Automation

Senior software engineer with 12+ years of experience, currently building and running my own production apps (mobile + web, serving real users daily). What that means for you: your task is handled by...

About this Gig

Messy spreadsheet, mixed formats, duplicates everywhere, 6 files that should be one? Send it to me get back clean, consistent, analysis-ready data.

I'm a software engineer, so your data is cleaned with proper tooling (Python + battle-tested libraries), not by hand. That means: fast, accurate at any size, and every step is repeatable and documented.

What I fix: Duplicates (including fuzzy ones: "ACME Ltd" = "Acme Limited") Inconsistent dates, phone numbers, names, addresses, currencies Splitting/combining columns (full name first/last, address parts) Merging multiple files/sheets with conflict resolution Junk rows, broken encodings (weird characters), empty noise Validation: what's still suspicious gets flagged, not hidden

What you get back: Clean file (XLSX/CSV your choice) Change log: what was fixed and how many rows affected Summary stats sheet (Standard+) Reusable script so it never gets messy again (Premium)

Your data stays confidential and is deleted after delivery. Message me a sample (10 rows is enough) for a exact quote.