Merge CSV files online without uploading them. Combine multiple CSV exports, preview rows, keep source tracking, and export the merged result as Excel or CSV from your browser.
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Selected files will appear here with file name, format, and size.
Parsed tables
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Data rows
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Selected merge tables
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Output columns
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Keep
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Delete
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The parsed 0 sheets / CSV tables will be written into one xlsx workbook, with each source kept as an independent sheet. You can rename each output sheet below.
Spreadsheet workflow
CSV merge is useful for marketplace exports, ad reports, analytics downloads, supplier files, and daily operation logs.
When different CSV files share similar columns, source tracking helps you audit the merged data later.
Yes. CSV parsing and merging run locally in your browser.
Yes. The tool supports csv, xlsx, and xls in the same merge task.
Yes. You can generate an Excel workbook from merged CSV data.