Free Excel to CSV converter that runs in your browser. Drop your .xlsx file and export as CSV instantly.
Reads .xlsx files directly in your browser. Handles dates, numbers, formatted cells, and large workbooks without Excel installed.
Excel files with multiple sheets? Select the sheet you need and export just that one as a clean CSV file.
Proper CSV encoding with correct quoting, escaping, and UTF-8 output. No broken characters or mangled dates.
See your data in a grid before converting. Verify columns, check row counts, and inspect values before exporting.
Filter rows, remove columns, fix formatting, or aggregate data before exporting. Do not just convert, improve your data.
Your Excel file never leaves your device. No upload, no cloud processing, no tracking. Powered by DuckDB WASM in your browser.
Drag an Excel file onto the page. Select the sheet you want.
Browse the data grid, check column types, apply filters if needed.
Click Export, choose CSV, and download your file instantly.
Open exploremydata.com/app, drag your .xlsx file onto the page, then click Export and choose CSV. The conversion happens instantly in your browser.
Yes. When you open an Excel file with multiple sheets, ExploreMyData lets you select which sheet to work with. You can export any individual sheet as CSV.
ExploreMyData reads the calculated values from your Excel file, not the formulas themselves. The CSV output contains the final values exactly as they appear in Excel.
No. ExploreMyData processes your Excel file entirely in your browser using DuckDB WASM. Your file never leaves your device. No server, no cloud, no tracking.
No sign-up, no upload, no tracking. Just drop your file and export.
Convert Excel to CSV Free