Starter workflow
One tidy list. No repeated rows. An Excel file ready to use.
Run the tools in this order and review each result as you go.
Clean your spreadsheet without the spreadsheet headache. Choose the columns that define a duplicate, preview the result and keep the first matching row.
Turn CSV into a proper Excel file. Preview columns, preserve leading zeros and choose text, number or date types before downloading XLSX.
Why this sequence
Select the columns used to identify duplicates, export the cleaned CSV, then choose column types before creating your XLSX file.
Compatible steps receive the previous result directly in the browser. If a step needs a fresh file, the workflow tells you before you begin.
Privacy by design
This starter processes files on your device. There is no account and saved workflow definitions stay in this browser.
How browser processing works →No. Both tools in this starter process the data in your browser.
This workflow creates a new data file. CSV does not preserve workbook formatting, charts or formulas. Review identifiers, dates and numbers before exporting.