UseTool

DOCX · XLSX · PPTX

Excel to CSV

Export every XLSX worksheet as a separate CSV file, entirely in your browser.

🔒 Files stay in this browser and are never uploaded.

How it works

How it works

  1. 1

    Add what goes in

    Drop your XLSX here, or pick it from your device.

  2. 2

    Start it

    Nothing to set — it starts as soon as the file is there. Everything runs in this browser: no upload, no queue, no account.

  3. 3

    Take the result

    The CSV is ready the moment the run finishes. Save it straight to your device.

When you need this

  • A newsletter tool only imports CSV, but the address list is an Excel workbook.
  • Each worksheet of a report should be processed separately by a script.

Supported formats

XLSX → CSV

Good to know

Frequently asked questions

Does every Excel worksheet become its own CSV?

Yes. Each readable XLSX worksheet is exported separately. If there are several sheets, they can be downloaded together as one ZIP created locally.

Are Excel formulas recalculated?

No. UseTool reads the result stored in the XLSX file; it does not run Excel's formula engine. Open and save the workbook in Excel first if calculated values are out of date.

What files can I use here?

Reads XLSX. As many files at once as you like.

What do I get back?

You get CSV.

Does the file lose quality?

Your file is read, not changed. The original stays exactly as it was.

Does the original layout stay intact?

Text and CSV extraction does not reproduce the Office layout. Embedded pictures and media are copied byte for byte without re-encoding.

Why are only DOCX, XLSX and PPTX supported?

These modern Office files use the documented OOXML package format. Legacy DOC, XLS and PPT binaries and macro-enabled files are deliberately not processed.

Private by design

Your files stay on your device

Files stay in this browser and are never uploaded.

Other tools

Ready-made

Workflows for this file type