Online Excel to CSV Converter

How to Use
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Batch Convert Excel to CSV!

This free online tool allows you to convert Excel files to CSV without opening them, with no registration required. Easily convert multiple Excel files and sheets into CSV format.

How to Use
STEP1

Upload Excel Files

Drag & drop your Excel files or upload them using the file selection button.

You can upload multiple files at once.

Screen for uploading Excel files
STEP2

Preview & Filter

Uploaded files will be listed as 'Filename_Sheetname.csv'.

Filter sheets by entering keywords or remove unwanted sheets using the ✖ button.

Preview screen with sheet name filtering
STEP3

Convert to CSV & Download

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.

CSV download screen
Key Features

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

Recommended For

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

Frequently Asked Questions (FAQ)
Are converted files saved on the server?
No. Files are never sent to a server; all processing occurs directly in your browser. You can use the tool with confidence.
Will character encoding issues be avoided?
Yes. Files are saved in UTF-8 with BOM, which helps prevent character encoding issues when opened in Excel.
Does it support Excel files with multiple sheets?
Yes. Each sheet is converted into a separate CSV file, clearly labeled with both the original filename and sheet name.
Can I use it on smartphones and tablets?
Yes. It works on PCs, as well as any device with a web browser.
What will be the filename after conversion?
Files will be named 'Filename_Sheetname.csv'. Special characters are automatically replaced with underscores.