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CSV to XLS

Convert CSV spreadsheets to XLS in seconds. CSV is best for importing and exporting data between apps; XLS is best for older Excel and accounting software. Your files are processed on your own device.

  • No upload — 100% private
  • Fast, lossless when possible
  • Free & unlimited
  • Works on iPhone & Android

    How to convert CSV to XLS

    1. 1

      Tap Choose files and select your CSV file(s).

    2. 2

      Adjust the options if you like (the defaults work well).

    3. 3

      Press Convert to XLS. Several files can be downloaded together as a ZIP.

    CSV vs XLS

    CSVXLS
    Full nameComma-Separated ValuesExcel 97–2003 workbook
    Opens on iPhone✓ Yes◐ Partly / with an app
    Opens on Android✓ Yes◐ Partly / with an app
    Opens on Windows✓ Yes✓ Yes
    Opens on Mac✓ Yes◐ Partly / with an app

    CSV: CSV is plain-text table data, one row per line. Every spreadsheet, database and CRM can import it.

    XLS: XLS is the older binary Excel format. Some accounting and government software still exports it.

    Frequently asked questions

    How do I convert CSV to XLS on my phone?
    Open this page in your phone's browser, tap Choose files, pick your CSV file(s) and press the button. The XLS file saves to Downloads.
    Is it free and unlimited?
    Yes. There's no sign-up, no watermark and no daily limit.
    Are my files uploaded?
    No. Conversion runs in your browser, so your documents and photos stay private.

    Rate this tool

    Be the first to rate it.

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