Skip to main content

    Convert XLSX to CSV online

    Convert your XLSX files to CSV for free, online, no signup or installation.

    Accepted source formats

    XLSX

    Available output formats

    CSV

    How it works

    1

    Upload

    Drag and drop or select your XLSX file from your device

    2

    Convert

    Click "Convert" and wait a few seconds

    3

    Download

    Get your converted CSV file instantly

    Common mistakes

    • Using a source file of poor quality.
    • Publishing without checking the final result.
    • Confusing file size, dimensions and quality.
    • Overwriting the original file without keeping a copy.

    Pro tips

    • Always keep an original version.
    • Test several settings before downloading.
    • Use WebP for the web when possible.
    • Choose descriptive file names for SEO.

    Privacy guaranteed

    Your files are processed locally in your browser and are never uploaded to our servers.

    Reduce an Excel file to its raw data

    CSV keeps only cell values, without an Excel file’s colors, formatting, formulas, or charts. This stripped-down format is often required to import data into another piece of software, a database, or an analysis tool.

    Only the first sheet is taken into account

    An XLSX file can contain several sheets; the CSV format, though, handles only one table per file. If the Excel workbook has several tabs, only the active sheet or the first one is converted.

    Formulas become fixed values

    A cell containing an Excel formula (=SUM(A1:A10), for example) is converted into the value it displayed at export time, not the formula: the CSV won’t recalculate anything if data changes elsewhere.

    Discover all our tools

    Convert, compress, merge and edit your files in a few clicks.

    See all tools

    Complementary tools

    Guides and tutorials

    Learn how to use our tools with our detailed guides.

    Frequently asked questions

    No, the CSV format handles only one table; only the first sheet (or the active one) is taken into account.

    No, only the values they displayed at the time of conversion are kept.

    No, CSV keeps only raw values, with no formatting at all.

    CSV is a simple text format, universally readable by databases and import tools, unlike the proprietary XLSX format.
    Convert XLSX to CSV for free | Convertly Converter