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    ToolnettA RaftApps Project

    Made with by RaftApps

    © 2026 Toolnett. All rights reserved.

    Free Online Excel to CSV Converter & XLSX to CSV Online

    Convert Excel to CSV format

    Verified Local Processing (100% Client-Side)

    Your data never touches our servers. All logic executes in your browser sandbox using WebAssembly (WASM). No uploads, no logging, zero data retention.

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    Offline-Ready Security

    Excel to CSV

    Convert your Excel spreadsheets (.xlsx, .xls) to CSV format instantly and privately.

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    About Excel to CSV

    Convert Excel (.xlsx, .xls) to CSV online for free. Fast and easy spreadsheet conversion. 100% private browser-based tool.

    Key Features

    • Convert .xlsx and .xls to standard CSV
    • Preserves data integrity during conversion
    • Fast browser-based processing with no uploads
    • Secure: Your spreadsheet data stays on your device

    How to Use

    1. 1Select the Excel file you wish to convert
    2. 2The tool processes the data in your browser
    3. 3Download your new CSV file instantly

    Frequently Asked Questions

    Everything you need to know about Excel to CSV Converter.

    The Easiest Way to Convert Excel to CSV Online

    Need to import your data into another system ? Our free Excel to CSV converter allows you to change XLSX to CSV in seconds.No need for professional spreadsheet software like Excel or Numbers.

    Privacy - First Data Conversion

    We know your data is sensitive.That's why our online spreadsheet converter works entirely in your browser. Your files are never uploaded to our servers, ensuring your personal and business data remains 100% private while you convert spreadsheets online.

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    Extract spreadsheet data as JSON

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    Combine multiple Excel files

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    Export sheets as PDF reports

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