Convert Excel to CSV - Free XLSX to CSV Converter with Multi-Sheet Support

Convert Excel (.xlsx) files to CSV format instantly. Support for multi-sheet workbooks. Convert single sheet, all sheets, or merge sheets. 100% free and private.

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Excel to CSV

Convert messy .xlsx files into clean, machine-readable CSVs.

How to Excel to CSV

  1. 1Upload your Excel (.xlsx) file
  2. 2Choose which sheet(s) to convert
  3. 3Select conversion mode (single, all sheets, or merge)
  4. 4Download your CSV file(s)

Why Use This Tool?

  • ✓Multi-Sheet Support - Convert single sheets, all sheets, or merge into one
  • ✓Instant Conversion - Excel to CSV in seconds
  • ✓Preserves Data - All values converted accurately
  • ✓Clean Output - Standard CSV format compatible with all tools
  • ✓No Excel Needed - Works in any browser
  • ✓Private & Secure - Files never uploaded to servers

Frequently Asked Questions

Can I convert multiple Excel sheets at once?

Yes! You can convert all sheets to separate CSV files (packaged in a ZIP), convert a single sheet, or merge all sheets into one CSV with a _SHEET column identifier.

How do I choose which sheet to convert?

After uploading your Excel file, you'll see a dropdown with all available sheets. Select the one you want to convert, or choose "All Sheets" or "Merge" mode.

Are formulas preserved?

No, formulas are converted to their calculated values. CSV format doesn't support formulas. Only the final values are exported.

What about formatting?

CSV files don't support formatting (colors, fonts, borders, etc.). Only the text/number values are preserved.

What happens when I merge all sheets?

All sheets are combined into a single CSV file with an additional _SHEET column at the beginning, identifying which sheet each row came from.

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