How to Excel to CSV
- 1Upload your Excel (.xlsx) file
- 2Choose which sheet(s) to convert
- 3Select conversion mode (single, all sheets, or merge)
- 4Download your CSV file(s)
Convert · browser workspace
Convert Excel to CSV - XLSX to CSV Converter with Multi-Sheet Support
Convert Excel (.xlsx) files to CSV format in your browser. Support for multi-sheet workbooks. Convert single sheet, all sheets, or merge sheets. 100% free and private.
Quick start
Built for turning excel workbooks into portable csv files for analysis, imports, or automation.
Everything runs in your browser, so you can test the workflow with sample data when available before using production files.
Output: A UTF-8 CSV that is ready for spreadsheets, databases, and scripts.
- 1Upload an .xlsx or .xls workbook.
- 2Choose a sheet or export mode when prompted.
- 3Download the CSV and continue in your destination tool.
Preparing your private workspace…
Why Use This Tool?
- ✓Multi-Sheet Support - Convert single sheets, all sheets, or merge into one
- ✓Instant Conversion - Excel to CSV without installing software
- ✓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.
Related Tools
Related Guides
Convert Excel to CSV (Without Losing Data)
Learn how to convert Excel files to CSV format without losing formatting, formulas, or data. Step-by-step guide with common problem fixes.
Read Guide →
Excel vs CSV: Which Should You Actually Use?
Understand the real differences between Excel and CSV files. Learn when to use each format and how to convert between them without losing data.
Read Guide →
Problems this tool can help diagnose
Use the symptom-specific walkthrough before changing a production file.