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Convert CSV to XLS

Counter CSV → XLS
Drop your files here .csv

    CSV is plain text: no formatting, formulas or multiple sheets, and accented characters can break in Excel. XLS is needed for old Excel versions and for accounting and ERP systems that require it.

    • Free
    • No sign-up
    • Batch conversion

    Why convert CSV to XLS?

    To convert CSV files to XLS, drop them on the counter above.

    Most files convert in seconds: no queue, no email address, and the XLS result saves straight to your computer or phone.

    How to convert CSV to XLS

    1. Add your CSV files

      Drag your CSV files onto the counter or pick them with Choose files. You can add several at once.

    2. Conversion starts by itself

      Each file is converted to XLS and its row is stamped CONVERTED.

    3. Download your XLS file

      Get the file with Download. With several files you can download them all as one ZIP.

    CSV vs XLS

    PropertyCSVXLS
    Full nameComma-Separated ValuesMicrosoft Excel 97-2003
    TypeSpreadsheetSpreadsheet
    Multiple sheetsNoYes
    Plain textYesNo
    Created byRFC 4180Microsoft
    Year—1997
    Extensions.csv.xls
    MIMEtext/csvapplication/vnd.ms-excel

    About the formats

    CSV

    Comma-Separated Values

    CSV stores each table row as a line of text, with cells separated by commas or semicolons. Nearly every program and database can import and export it.

    All CSV conversions

    XLS

    Microsoft Excel 97-2003

    XLS is the binary spreadsheet format of Excel 97-2003. Older accounting software and enterprise systems still produce or require it.

    All XLS conversions

    Frequently asked questions

    Is converting CSV to XLS free?

    Yes, completely free. No account, no daily limit, no watermark and no queue.

    Does it work on a phone?

    Yes. It works on iPhone, iPad and Android, with no app to install.

    Is there a file size limit?

    There is no size limit set by us. Files of hundreds of MB convert too; very large files take longer and are handled more comfortably on a computer than on a phone.

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