Excel (XLSX) to CSV Converter
Convert Excel (.xlsx / .xls) to CSV free in your browser. Drop a workbook, pick a sheet, download clean CSV — no upload, no signup.
- 100% free
- Runs in your browser — nothing is uploaded
- No signup required
CSV is the universal format — every database, script, and import tool accepts it. This converter pulls clean CSV out of any Excel workbook (.xlsx or .xls), one sheet at a time.
Your workbook is read locally in the browser; nothing is uploaded. If the workbook has multiple sheets, change the sheet number to export each one.
Example
report.xlsx (3 sheets)
Sheet 1 exported as clean, comma-separated CSV
Your data never leaves your device
Like everything at OpenCSV, this tool processes files locally in your browser. There is no upload, no server-side processing, and no copy of your data anywhere — which makes it safe for customer lists, financial exports, and other sensitive files.
Frequently Asked Questions
- Modern .xlsx and legacy .xls files both work, including workbooks exported from Google Sheets.
Keep working with your CSV
- / free toolCSV to JSON
Turn CSV rows into a JSON array of objects.
- / free toolJSON to CSV
Flatten a JSON array into spreadsheet-ready CSV.
- / free toolCSV to Excel
Turn a CSV into a real .xlsx Excel workbook.
- / free toolCSV to SQL
Generate CREATE TABLE + INSERT statements from CSV.
- / hubAll free CSV tools
Converters, splitter, merger, validator and more.
Need to view or edit the file first?
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