Local processing · files stay on your device

Select CSV columns

Keep selected CSV columns in your chosen order using their column numbers.

How to use Select CSV columns

  1. Choose a file (CSV / TSV) from your device.
  2. Set column numbers, e.g. 3, 1-2.
  3. Run the tool, inspect the result, and download your output.

What this tool does

Keep selected CSV columns in your chosen order using their column numbers. Your original files are unchanged. Keep a copy and check the downloaded result before relying on it.

Questions about Select CSV columns

Are my files uploaded?

This tool processes files in your browser. File contents are not uploaded to FileToast. Downloads stay wherever you save them.

Can I change the column order?

Yes. Enter column numbers in the output order you want.

Do I select columns by name?

Use column numbers starting at 1, rather than header text. Check the output to confirm your selection.

What are the file and processing limits?

Up to 50 MB per file. Large or complex files can exceed your device’s or the converter’s capacity.

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