Free Excel to CSV Converter Online | FileNaro

Free Online Tool to Convert Excel Files to CSV Easily with FileNaro Convert Excel to CSV online for free with FileNaro. Upload an XLSX, XLS or ODS .

Free Excel to CSV Converter Online


Convert Excel to CSV online for free with FileNaro. Upload an XLSX, XLS or ODS spreadsheet, select a worksheet, customize CSV settings and download your converted file in seconds.

Excel to CSV Converter

Select a spreadsheet file to get started. Your file is processed in your browser using JavaScript after the required libraries load.

Choose a spreadsheet file to begin.

CSV Preview

How to Convert Excel to CSV

  1. Click Choose Excel or ODS file and select your spreadsheet.
  2. Select a worksheet or choose all sheets if you need multiple CSV files.
  3. Choose a delimiter, text encoding and line-ending format.
  4. Click Convert to CSV to preview the result.
  5. Click Download CSV to save the converted file.

If you select all worksheets, the converter packages the separate CSV files into a ZIP archive.

Why Use FileNaro Excel to CSV Converter?

Free conversion

Convert supported spreadsheets without paying for a conversion service.

No account required

Start using the tool without creating a FileNaro account.

Multiple worksheets

Convert one worksheet or export all worksheets into a ZIP file.

Flexible CSV settings

Choose delimiters, encoding, line endings and quotation options.

Preview before downloading

Check a sample of the converted data before saving the output.

Browser-based processing

The conversion runs locally in your browser after the libraries load.

What Is an Excel to CSV Converter?

An Excel to CSV converter changes spreadsheet data from an Excel workbook into a Comma-Separated Values file. CSV is a widely supported text format used for data exchange, reporting, database imports, contact lists and many business applications.

Excel workbooks can contain formatting, formulas, charts and multiple worksheets. A CSV file generally stores tabular data from one worksheet as plain text. It does not preserve the complete Excel workbook design, charts or multiple-sheet structure in a single CSV file.

With the FileNaro free Excel to CSV converter online, you can select a worksheet, review the output and download the CSV file. If your workbook contains multiple sheets, you can export them separately in a ZIP archive.

Supported Spreadsheet Formats

  • XLSX to CSV: Convert modern Microsoft Excel workbooks.
  • XLS to CSV: Convert older Excel spreadsheet files.
  • ODS to CSV: Convert supported OpenDocument spreadsheets.
  • XLSM and XLSB: Support may vary depending on workbook features and library compatibility.
  • CSV files: A CSV file can be loaded and exported again using the available options.
Important: CSV supports plain tabular data. It does not retain Excel formulas as working formulas, cell styling, charts, macros or all workbook features. Review your exported data before using it in another application.

When Should You Convert Excel to CSV?

  • Importing spreadsheet data into a database.
  • Preparing data for analytics and reporting tools.
  • Moving contact lists between supported applications.
  • Sharing simple table data with software that accepts CSV.
  • Preparing spreadsheet information for scripts and data-processing workflows.

Frequently Asked Questions

How do I convert Excel to CSV online for free?

Select your XLSX, XLS or supported ODS file, choose a worksheet and your preferred CSV settings, then click Convert to CSV. Preview the output and download it.

Can I convert XLSX to CSV?

Yes. Select an XLSX workbook, choose the worksheet you need and convert it to CSV. The output contains tabular data rather than the full Excel workbook formatting.

Can I convert XLS files to CSV?

Yes, supported older XLS spreadsheet files can be selected and converted. Results may depend on the workbook's contents and format.

Can I convert every worksheet in one workbook?

Yes. Choose All sheets (ZIP). Each selected worksheet is exported as a separate CSV file, and the files are combined into a ZIP archive.

Does CSV preserve Excel formulas and formatting?

No. CSV is a text-based format and does not preserve the complete workbook, formatting, charts or working formulas. The exported file contains cell data.

Why do some characters look incorrect in my CSV file?

The receiving application may interpret text encoding differently. Try the UTF-8 with BOM option, particularly when opening the file in desktop spreadsheet software.

Is this Excel to CSV converter free?

FileNaro provides this browser-based tool for free. Your internet connection is needed to load the conversion libraries.

Are my spreadsheet files uploaded to FileNaro?

This tool is designed to process the selected spreadsheet in your browser. The conversion code does not intentionally upload the selected file to a FileNaro server. However, external libraries are loaded from third-party CDNs, and browser extensions or other software may affect your environment. Avoid processing highly sensitive files on a device you do not trust.

FileNaro provides this tool for convenience. Always verify important data after conversion, especially dates, numbers, leading zeros and special characters.

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