Neatbo.

Excel to CSV

Choose an Excel worksheet and export it as CSV.

Browser-local processingInputXLSXOutputCSVUp to 20 MiB per file · File limit: 1
  1. 1Add input
  2. 2Adjust settings
  3. 3Get your result

Tool input and files are processed in this browser without being uploaded.

Your input

Inputs are kept temporarily in this tab when switching tools. Refreshing or closing clears them; large results may need to be regenerated.

⌘ / Ctrl + Enter to run

or drag and drop it here

Files stay on this device. Your originals stay unchanged.

.xlsx

Up to 20 MiB per file · File limit: 1

    Options

    Complete the required options first. You can keep the defaults for the rest.

    Load worksheet names first, then choose the sheet to export. Each run exports one worksheet.

    Preparing the tool…

    Before you start

    Read one selected XLSX worksheet into CSV. Shared strings and cached formula results are read locally; formulas are never executed and missing caches require explicit consent.

    How to use this tool

    1. Choose the local .xlsx file. The working copy stays in this browser.
    2. Review Worksheet name (blank uses the first), Delimiter before selecting “Export CSV”.
    3. Review the CSV result, then use the available copy or download controls.

    Supported inputs and limits

    Document packages are limited to 20 MiB, 2,000 entries and 100 MiB expanded; macros and external relationships are not executed.

    CSV uses stored cell values, not Excel display formatting. Check date, currency and percentage columns before using the export.

    Worked example

    Example input

    independent.xlsx
    Example options
    {
      "sheet": "First"
    }

    Example output

    id,name,value
    001,中文,2
    9007199254740993,emoji😀,3

    When something does not work

    Correct the reported syntax or range and run again. Formatting is not execution: scripts, SQL, expressions and pasted markup do not run against your system or a remote service.

    Frequently asked questions

    Are my files uploaded?

    No. Files and tool input are processed in your browser. Moving around the site can keep a temporary workspace in the same tab. Refreshing or closing the tab clears it, so download results you want to keep.

    What should I check in this result?

    Read one selected XLSX worksheet into CSV. Shared strings and cached formula results are read locally; formulas are never executed and missing caches require explicit consent.

    Documentation & further reading

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