Excel ↔ CSV Converter - Free Online Tool

Convert Excel files to CSV and vice versa with encoding and delimiter options

Conversion Direction

Convert Excel file to CSV format
Convert CSV data to Excel file

Upload Excel File

Drop Excel file here or click to browse

Support for .xlsx, .xls files (Max 10MB)

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Sample Files for Testing

Download sample files to test the conversion:

Sample CSV File Messy CSV Data
Perfect for testing CSV to Excel conversion

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How to Use Excel ↔ CSV Converter - Free Online Tool

I'll guide you through converting between Excel and CSV formats with full control over delimiters, encoding, and formatting options.

Converting Excel to CSV:

Step 1: Select Excel to CSV

Choose "Excel → CSV" from the conversion direction options.

Step 2: Upload Excel File

Upload your Excel file (.xlsx or .xls, max 10MB). The tool will read your data for conversion.

Step 3: Configure CSV Settings

  • Delimiter: Choose comma, semicolon, tab, or pipe separator
  • Text Qualifier: Select quotes around text fields
  • Encoding: UTF-8 (recommended) or Windows-1252
  • Sheet Selection: Convert first sheet or all sheets

Step 4: Convert and Download

Click "Convert to CSV" to generate your CSV file(s).

Converting CSV to Excel:

Step 1: Select CSV to Excel

Choose "CSV → Excel" from the conversion options.

Step 2: Upload CSV File

Upload your CSV file. The tool will auto-detect the delimiter and structure.

Step 3: Configure Import Settings

  • Delimiter Detection: Auto-detect or manually specify
  • Text Encoding: Choose the correct encoding for your data
  • Header Row: Specify if first row contains column headers

Step 4: Generate Excel File

Click "Convert to Excel" to create your formatted spreadsheet.

Best Practices:

  • Use UTF-8 encoding for international characters
  • Choose appropriate delimiters based on your data content
  • Always preview converted files before using in production
  • Keep original files as backups during conversion

Frequently Asked Questions

Comma is most common, but use semicolon if your data contains commas. Tab works well for data with both commas and semicolons. Pipe (|) is good for data with punctuation. Choose based on what characters appear in your actual data.

This is usually an encoding issue. If you see strange characters, try switching between UTF-8 and Windows-1252 encoding. UTF-8 handles international characters better, while Windows-1252 works for older systems.

Yes! When you select "All Sheets", the tool creates separate CSV files for each sheet and packages them in a ZIP file for easy download.

CSV format only preserves data content, not formatting like colors, fonts, or formulas. You'll get the calculated values and text, but visual formatting is lost. This is a limitation of the CSV format itself.

The tool analyzes your CSV file to identify the most likely delimiter, text qualifiers, and structure. It looks at patterns in the first few rows to make intelligent guesses, but you can always override these settings manually.

Text qualifiers (usually quotes) protect data that contains your delimiter character. For example, if using comma delimiter and your data contains "Smith, John", quotes prevent the comma from being treated as a field separator.