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XLSX to CSV Converter

Convert Excel .xlsx files to CSV — free, private, and instant in your browser.

Drop your file here or click to upload

Supports XLSX files up to 100MB

How to Convert

  1. Upload your .xlsx file or drag it onto the page
  2. Pick the sheet to convert if the workbook has more than one
  3. Choose your delimiter and encoding options
  4. Download the CSV file

Features

  • Reads modern Excel .xlsx workbooks
  • Sheet selector for multi-sheet workbooks
  • Choose the delimiter (comma, tab, semicolon, pipe)
  • Select output encoding (UTF-8, UTF-8 BOM, Latin-1)
  • Runs entirely in your browser — files never leave your device

Use Cases

  • Extract .xlsx data for import into a database or CRM
  • Convert an Excel workbook into a universal CSV format
  • Prepare spreadsheet data for scripts and data pipelines

Frequently Asked Questions

Does this handle multi-sheet .xlsx workbooks?

Yes. Use the sheet selector to choose which sheet to export, or download each sheet as its own CSV file.

What happens to Excel formulas?

Formulas are exported as their calculated values, so the CSV contains the results rather than the formula text.

Can I pick the delimiter and encoding?

Yes. Export with a comma, tab, semicolon, or pipe delimiter and UTF-8, UTF-8 with BOM, or Latin-1 encoding.

Is my file uploaded to a server?

Never. The conversion runs locally in your browser, so your data stays private and works offline.

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Need to convert the other way? Try our Csv To Xlsx