SPREADSHEET TOOLS

Excel & CSV Cleaner Online

Clean spreadsheet data before analysis, reporting, imports or everyday office work.

✓ XLSX✓ CSV✓ Remove Duplicates✓ Local Processing
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Drag an Excel or CSV file here orXLSX · XLS · CSV
Quick answer

What can an Excel cleaner do?

JubKub can remove blank rows, duplicate records, extra whitespace and empty columns from Excel or CSV files, with a preview before export.

Why clean spreadsheet data?

Exports from business systems, forms and websites often contain blank rows, duplicates and unnecessary whitespace. Cleaning helps reduce errors before reporting or analysis.

Can I remove duplicate rows?

Yes. JubKub compares complete rows, keeps the first occurrence and removes repeated rows.

Does this modify my original file?

No. Your original spreadsheet is not changed. JubKub generates a new file when you export the cleaned data.

Does it support CSV?

Yes. XLSX, XLS and CSV files are supported, and cleaned data can be exported as XLSX or CSV.

✓

Your spreadsheet stays on your deviceExcel and CSV processing happens locally in your browser without uploading the file to JubKub.