Convert to XLSX format online, for free.
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FreeConvert supports 500+ file formats. Simply upload your files and convert them to XLSX format. Alternatively, you can upload XLSX files and convert them to a different format. All from the convenience of one tool!
We use both open source and custom software to make sure our conversions are of the highest quality. In most cases, you can fine-tune conversion parameters using “Advanced Settings” (optional).
Our XLSX converter is free and works on any web browser. We guarantee file security and privacy. Files are protected with 256-bit SSL encryption and automatically deleted after 8 hours.
Excel Open XML Workbook (XLSX) is the default spreadsheet format of Microsoft Excel since the 2007 release. An XLSX file is a ZIP package of Office Open XML parts describing worksheets, formulas, charts, and formatting. Compared with the old XLS format it is substantially smaller, supports over a million rows per sheet, and cannot contain macros — a deliberate safety measure.
Microsoft Excel opens XLSX natively, and Excel for the web opens it in a browser with a Microsoft account.
Google Sheets, LibreOffice Calc, and Apple Numbers all preserve formulas and most formatting. Very complex workbooks with pivot tables or advanced charts are safest in Excel itself. To share data without letting recipients change it, convert the workbook with our XLSX to PDF tool.
Developed by: Microsoft
Standard: ECMA-376 / ISO/IEC 29500
Initial Release: 2007
Freeconvert.me can convert your XLSX files to these other formats:
While this page can convert any Document to XLSX, you may wish to visit following Converter pages that only support specific conversions
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