ConvertCove

XLSX file format

Excel Workbook. Microsoft Excel spreadsheet (also reads legacy XLS and OpenDocument ODS).

or drop files here · processed on your device, never uploaded

    What is an XLSX file?

    XLSX is the Office Open XML spreadsheet format introduced with Excel 2007 and standardised as ECMA-376 and ISO/IEC 29500. An .xlsx file is a ZIP package of XML parts for sheets, shared strings, styles and charts.

    ConvertCove uses SheetJS to read .xlsx, legacy .xls and OpenDocument .ods files in your browser, and writes standard .xlsx workbooks that open in Excel, Google Sheets, Numbers and LibreOffice.

    Extensions.xlsx (also reads .xls, .ods)
    MIME typeapplication/vnd.openxmlformats-officedocument.spreadsheetml.sheet
    StructureWorkbook of sheets
    StandardECMA-376 / ISO/IEC 29500
    ConvertCove librarySheetJS Community Edition

    Convert XLSX to…

    Every conversion listed works in the converter above: add a XLSX file and pick the target format.

    Convert to XLSX from…

    CSV, JSON, XML, YAML

    Detailed guides: XLSX to CSV

    Part of the data & documents converter · all formats.