A fast, free online tool to convert Excel files to CSV format without opening them. Batch convert multiple Excel files or specific sheets instantly. Secure, browser-based processing with no registration required.
Drag & drop your Excel files or upload them using the file selection button.
You can upload multiple files at once.
Uploaded files will be listed as 'Filename_Sheetname.csv'.
Filter sheets by entering keywords or remove unwanted sheets using the ✖ button.
Files displayed in the preview will be converted to CSV.
Single files download as CSV, while multiple files download as a ZIP archive. All CSV files are output in UTF-8 encoding.
Supports batch conversion of multiple Excel files
Convert multiple sheets to CSV at once
Fast & Secure: Files are not sent to a server
Free & No Registration Required: Use instantly
User-friendly preview function
Correctly extracts and converts calculation results of formulas and functions (e.g., HYPERLINK)
Anyone who needs to batch convert Excel data to CSV
Those who need CSV files for system import
Business users looking to improve efficiency and process data
Anyone searching for a free, no-registration Excel to CSV converter
Online Excel to CSV Converter 
