Spreadsheet and CSV Tools
CSV Column Selector and Reorder Tool
Process spreadsheet data with this csv column selector and reorder tool entirely in your browser.
Your files stay in this browser. Each input file can be up to 4 MB and is held only in local memory.
How to use this calculator
- Load a local file or paste CSV text, adjust the available options, and review the result before downloading it.
- Review the live result and use Copy result when you need to share it.
How the calculation works
The browser parses the file in local memory. CSV fields preserve quoted commas, escaped quotation marks, and line breaks; files are not uploaded.
Processing rules
The browser parses the file in local memory. CSV fields preserve quoted commas, escaped quotation marks, and line breaks; files are not uploaded.
Step-by-step calculation
- Load a local file or paste CSV text, adjust the available options, and review the result before downloading it.
- The browser parses the file in local memory. CSV fields preserve quoted commas, escaped quotation marks, and line breaks; files are not uploaded.
- Check the displayed result, then copy it if needed.
Worked example
A four-column export can be reduced to the two required columns and reordered before download.
Methodology and review
Who this is for
Analysts selecting and arranging fields before import.
Inputs and units
- CSV file
- Columns and output order
Method
The CSV is parsed with quoting rules, then selected headers are retained, removed, or reordered before the rows are serialised again.
Worked example
Keeping Name then Email removes other fields and serialises those two in the chosen order.
Assumptions
- The first row contains the column names.
- Repeated header names are intentionally treated by position.
Common mistakes
- Assuming duplicate headings are unique
- Discarding columns before checking downstream requirements
Limitations
- Column operations do not validate business meaning or data types.
- CSV cannot retain workbook formatting or formulas.
How this tool was checked
Fixtures exercise quoted delimiters, multiline fields, reordered columns, and downloaded output.
Reference sources
Related tools
Calculation review: 21 August 2026. Published by Goldwave Dynamics Limited. This is an internal product review, not an independent certification.
Risk guidance
Frequently asked questions
Does this tool send my inputs anywhere?
No. The interactive calculation runs in your browser and this site does not submit tool inputs to a backend.
How should I use the result?
Check that the entered units and values match your situation, especially around dates, breaks, and rounding.