EN
Englishहिन्दीEspañolPortuguêsBahasa Indonesia
All tools

Ringtones

Ringtone MakeriPhone Ringtone (M4R)Android Ringtone (MP3)

Audio tools

Audio ConverterAudio CutterVoice Recorder & CutterMono to StereoStereo to MonoVolume BoosterSpeed Changer

Video tools

Video ConverterVideo to MP3Video CompressorVideo CutterVideo to GIFMute VideoRotate & Flip VideoResize & Crop VideoWhatsApp Video ConverteriPhone Video Converter3GP Converter (Old Phones)

PDF & document tools

PDF to WordWord to PDFMerge PDFSplit PDFCompress PDFPDF to JPGImage to PDFRotate PDFDelete PDF PagesPDF to TextExcel to PDFExcel / CSV ConverterText to PDFWord to Text / HTML

Image tools

Image ConverterHEIC to JPGCompress ImageResize Image

ZIP & archive tools

Create ZIPUnzip / ExtractRAR Extractor7Z ExtractorTAR.GZ ExtractorCompress Files (7Z)Password-Protect ZIPArchive ConverterCreate TAR.GZ

More

All toolsHow-to guidesAll conversionsAll formatsAboutContact

CSV to XLSX

Convert CSV spreadsheets to XLSX in seconds. CSV is best for importing and exporting data between apps; XLSX is best for spreadsheets, accounts and data tables. 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 XLSX

    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 XLSX. Several files can be downloaded together as a ZIP.

    CSV vs XLSX

    CSVXLSX
    Full nameComma-Separated ValuesMicrosoft Excel 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.

    XLSX: XLSX is the Excel spreadsheet format with multiple sheets, formulas and formatting. Google Sheets, Numbers and LibreOffice open it too.

    Frequently asked questions

    How do I convert CSV to XLSX on my phone?
    Open this page in your phone's browser, tap Choose files, pick your CSV file(s) and press the button. The XLSX 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.

    Related conversions

    XLS to XLSXODS to XLSXCSV to XLSCSV to ODSCSV to JSONCSV to HTMLCSV to PDF

    Helpful tools

    Excel / CSV ConverterConvert between XLSX, XLS, ODS, CSV, TSV, JSON and HTML: CSV to Excel, Excel to CSV…Excel to PDFConvert Excel (XLSX, XLS), ODS and CSV spreadsheets to a printable PDF table in…