I will clean excel or CSV data and remove duplicates

Poland

I speak English, Turkish, Polish

Invoice trackers, data cleanup and small internal tools with Claude Code

I create Excel invoice and payment trackers and clean structured spreadsheet data. As a co-founder of two small companies, I handled invoices, supplier balances, payment schedules and daily cash recon...
About this Gig

Need a structured spreadsheet cleaned without losing track of changed or uncertain records?


I will clean Excel or CSV data using rules agreed before the work starts. Packages cover formatting, duplicate removal using one agreed key, and flagging missing or ambiguous values.


You receive:

- The cleaned file

- The flagged records, kept separate

- A brief summary of changes and record counts


Excel delivery contains separate Cleaned, Flagged and Change summary sheets. CSV delivery contains separate cleaned and flagged CSV files plus a change summary.


Limits apply to total input rows across all files. Packages cover up to 10 columns; files being combined must have matching columns.


I do not guess missing information, infer phone country codes, verify whether email addresses are active, or merge uncertain matches. Scanned documents, manual research and complex workbook repairs need a separate scope.


Please message me with an anonymized sample before ordering if your data or rules are unusual. I may use Claude Code for a task-specific script; please tell me beforehand if AI-assisted work is not acceptable.


Gallery examples use fictional data and are not client work.