#069 · CSV & Delimited Files Tool

CSV Column Extractor

Upload a CSV or TSV file, enter column names or numbers in the desired order, and choose the output format. Missing columns stop the export.

Office File Tool

Local browser processing

Drop spreadsheet here

XLSX, XLS, CSV, or TSV
or click to choose a file

No file selected

Worksheet

Header row

row

Output format

Preview limit

rows

Preserve formulas Trim cell whitespace Keep empty rows Protect text values

How to use this office tool

Select or drop the supported file.
Review the detected sheet and adjust the operation-specific options.
Process the file, inspect the limited preview and output counts, then download the new result.

What this tool does

Selected fields are copied in the order listed, with quoting and delimiters written safely by the export library.

Enable spreadsheet-injection protection when the output may be opened in Excel or another spreadsheet app.

CSV and TSV are supported with delimiter detection. Output is CSV, TSV, JSON, or XLSX.

Supported formats

CSV and TSV are supported with delimiter detection. Output is CSV, TSV, JSON, or XLSX.

Format	Use
XLSX / XLS	Workbook data and formulas where applicable
CSV / TSV	Delimited tabular data with detected quoting

Tips for better results

Keep a copy of the original before changing production data.
Use a clear, unique header row.
Check identifiers, dates, formulas, and a sample of output rows.

FAQ

Does CSV Column Extractor upload my spreadsheet?

No. Processing happens in your browser, and the selected file is not sent to Calloffice.

What happens to formulas when I use this extract tool?

Formula cells are preserved where the selected operation can retain them, but the browser does not reproduce Excel's full calculation engine.

Can I use large files with CSV Column Extractor?

Yes, within your browser's available memory. The preview is capped, and very large workbooks may take longer or need to be split first.

How are dates, IDs, and leading zeros handled?

The tool uses displayed spreadsheet values where appropriate and avoids intentional numeric conversion unless the selected operation requires it. Review identifier columns after export.

What should I check before using the downloaded file?

Check the preview, output counts, headers, and a few representative rows. Keep the original file until the result has been verified.

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Processing summary

Stage	Behavior
Input	CSV & Delimited Files
Privacy	Local browser processing
Download	Newly generated result file

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