Convert Excel files to CSV format in seconds. Support for large spreadsheets with thousands of rows and columns.
🔒
100% Secure Conversion
All Excel processing happens in your browser. Your files never leave your device, ensuring complete data security.
🎯
Advanced Options
Choose custom delimiters, encoding, worksheet selection, and formatting options for precise CSV output.
📋
Multiple Format Support
Convert XLSX, XLS, XLSM files. Handle multiple worksheets, formulas, and preserve data integrity during conversion.
Excel vs CSV Format Comparison
Feature
Excel (XLSX/XLS)
CSV
File Size
Larger (compressed)
Smaller (plain text)
Compatibility
Excel applications
Universal (any text editor)
Formulas
Supported
Values only
Multiple Sheets
Yes
One sheet per file
Formatting
Rich formatting
Plain text only
Database Import
Limited support
Excellent support
How to Convert Excel to CSV Online - Step by Step Guide
Upload Excel Files: Click "Choose Excel Files" or drag and drop your XLSX, XLS, or XLSM files into the upload area.
Select Conversion Options: Choose which worksheets to convert, CSV delimiter, text encoding, and formatting preferences.
Configure Settings: Decide whether to include headers, trim whitespace, and skip empty rows based on your needs.
Convert to CSV: Click the "Convert Excel to CSV Now" button to start the conversion process.
Download Results: Once conversion is complete, download your CSV files individually or as a ZIP archive.
Pro Tip: When converting Excel files with multiple worksheets, choose "Convert All Worksheets" to get separate CSV files for each sheet, or select "First Worksheet Only" for single-sheet conversion.
Why Convert Excel to CSV?
Database Integration
CSV files are the preferred format for importing data into databases, data analysis tools, and business intelligence platforms. Most database systems can directly import CSV files without additional conversion.
Universal Compatibility
Unlike Excel files, CSV files can be opened by virtually any application, from simple text editors to sophisticated data analysis tools, making them ideal for data sharing and collaboration.
Smaller File Sizes
CSV files contain only data without formatting, formulas, or embedded objects, resulting in significantly smaller file sizes that are easier to share and store.
Programming and Automation
CSV files are easier to process programmatically using Python, R, SQL, and other programming languages, making them essential for automated data processing workflows.
Frequently Asked Questions - Excel to CSV Converter
What Excel formats can I convert to CSV?
Our converter supports all major Excel formats including XLSX (Excel 2007+), XLS (Excel 97-2003), and XLSM (Excel with macros). The conversion process extracts data values while preserving structure.
What happens to Excel formulas during conversion?
Excel formulas are converted to their calculated values in the CSV output. The CSV format only supports data values, not formulas, so all calculations are evaluated and the results are included.
Can I convert Excel files with multiple worksheets?
Yes! You can choose to convert all worksheets (creating separate CSV files for each) or select specific worksheets. Each worksheet becomes a separate CSV file since CSV format supports only single sheets.
How are Excel dates handled in CSV conversion?
Excel dates are converted to standard date format (YYYY-MM-DD) in the CSV file. Time values are preserved in HH:MM:SS format. You can specify different date formats if needed for your specific use case.
What delimiter should I choose for my CSV files?
Comma (,) is the standard delimiter and works with most systems. Choose semicolon (;) for European locales, tab for TSV format, or pipe (|) if your data contains many commas or semicolons.
Is there a file size limit for Excel conversion?
You can convert Excel files up to 50MB each. This accommodates most business spreadsheets. For very large files, consider breaking them into smaller worksheets before conversion.
Will formatting and colors be preserved in CSV?
No, CSV is a plain text format that only contains data values. Formatting, colors, fonts, cell borders, and other visual elements are not preserved. Only the actual cell values are converted.
Can I convert password-protected Excel files?
Currently, password-protected Excel files cannot be converted. Please remove password protection from your Excel files before uploading them for conversion.