Excel to CSV Converter

Convert Excel to CSV instantly

The Excel to CSV converter turns each sheet of an Excel workbook (.xlsx or .xls) into a clean CSV file you can download. It runs entirely in your browser, so your spreadsheet is never uploaded — making it private, fast, and safe for sensitive data.

Why convert to CSV?

CSV (comma-separated values) is the universal format for moving tabular data between systems. Databases, programming languages, analytics tools, and APIs all read CSV easily, while native Excel files are more complex and proprietary. Converting to CSV is often the first step when importing data into another application or processing it with code.

How to use it

1. Upload or drag in your Excel file.
2. Each sheet is converted to CSV and previewed.
3. Download the CSV for any sheet you need.

One CSV per sheet

CSV is a flat, single-table format — it has no concept of multiple sheets. So when your workbook contains several sheets, this tool produces a separate CSV for each one, named after the sheet. That keeps your data organized and avoids the common confusion of trying to cram multiple tables into a single CSV.

What carries over

Preserved	Not in CSV
Cell values and text	Formatting, colors, fonts
Rows and columns	Formulas (values are kept)
Each sheet separately	Charts and images

Private by design

Your spreadsheet is parsed locally in your browser using a spreadsheet engine loaded on demand. Nothing is uploaded, so financial data, customer records, and other sensitive information stay on your device. The resulting CSVs open in Excel, Google Sheets, databases, and any text editor.

Private and free

The converter is completely free with no sign-up. Convert as many workbooks as you like.