Excel & Power Query data cleaning for reporting

Hi, I’m Leandro, an Economics student at the University of Buenos Aires (UBA). I help businesses turn messy spreadsheets into clean, consistent, and refreshable Excel outputs using Power Query.

My work is focused on practical reporting needs: sales exports, bank transactions, invoices, costs, and recurring monthly data. I don’t just “clean columns” — I structure your dataset so it’s reliable and easy to reuse.

What you can expect:

Clean, structured tables ready for reporting

Power Query transformations (refreshable)

QA checks: duplicates, missing values, totals, date consistency, outliers

A short "Readme" inside the file (to answer common questions)

If you share your goal and a sample of your data, I’ll propose a clear scope and the simplest workflow to deliver fast and accurately.

Work Terms

Availability: Weekdays (GMT-3).
Communication: Clear questions upfront + short written updates.
Workflow: You share a sample file + target output. I confirm scope, deliver a refreshable Excel file, and include QA checks + a short README inside the file.
Confidentiality: Your data stays private and is used only for your project.
Revisions: Minor adjustments included if requirements remain unchanged.Availability: Weekdays (GMT-3).
Communication: Clear questions upfront + short written updates.
Workflow: You share a sample file + target output. I confirm scope, deliver a refreshable Excel file, and include QA checks + a short "Readme" inside the file.
Confidentiality: Your data stays private and is used only for your project.
Revisions: Minor adjustments included if requirements remain unchanged.

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