Excel to CSV Converter

Convert Excel spreadsheets to CSV format instantly in your browser

100% private — files stay in your browser

Click to upload or drag and drop

Excel files (.xlsx, .xls, .xlsm) — up to 20MB

File: -

Sheets: -

Select Sheet to Convert:

How to Use

Click the drop zone or drag and drop an Excel file (.xlsx, .xls)
Select which sheet to convert (if file has multiple sheets)
Preview your data in the table
Click "Download CSV" to save the converted file
All conversion happens in your browser — no uploads, no server

Excel to CSV

CSV (Comma-Separated Values) is a universal format that works with every spreadsheet application, database, and programming language.

Why convert to CSV?

Reduce file size — CSV is much smaller than Excel files
Maximum compatibility — works with any software
Better for data import/export in databases and APIs
Plain text format — easy to edit and version control
Supports large datasets better than Excel in many tools