I will merge multiple excel or CSV files into one clean deduplicated table

Several files, one messy result? I'll consolidate your Excel or CSV files into a single clean table: same columns, no duplicates between files.

WHAT I DO

Merge many files into one table (Excel, CSV, Google Sheets exports)

Align columns that don't match (Email / E-mail / Mail...)

Remove duplicates between files, not only inside each one

Choose which row to keep when files disagree (newest, most complete, or flagged)

Add a "Source" column so you know where each row came from

Flag rows that need your decision instead of silently deleting them

HOW IT WORKS

1. Send your files and tell me which column identifies a unique row (email, ID, name + phone...)

2. I map the columns and merge with tested scripts, then check the result manually

3. You get one clean file + a merge report (rows in, rows out, duplicates removed)

WHY WORK WITH ME

- Clear fixed prices, no surprises

- Based in France (EU): files processed on my own computer, deleted after delivery

- Excel (.xlsx), CSV or Google Sheets

Bigger job? Message me before ordering: I'll look at it and send you a custom offer.