Spreadsheets

The XLSX format

Excel’s format: tables with several sheets, formulas, number formats and styles. It’s the most common way to exchange tabular data in business.

Drop your files hereor (XLSX and over 40 other formats). You can also paste an image.No upload: everything happens on your device

Fact sheet

XLSX

Microsoft Excel workbook

Best for: Tables, budgets, lists to sort and filter.
Limits: Not well suited for importing data into programs and websites: CSV is used there.
Type: spreadsheet
Multiple sheets: yes
Programs: Excel, LibreOffice Calc, Google Sheets, Numbers
Extensions: .xlsx
MIME type: application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
Since: 2007

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Questions about the XLSX format

How do I open a XLSX file?

It opens in Excel, LibreOffice Calc, Google Sheets, Numbers. If the program or website you use won’t accept it, you can convert it here to a more common format, for example CSV.

What extension do XLSX files have?

.xlsx. The MIME type is application/vnd.openxmlformats-officedocument.spreadsheetml.sheet.

Does converting a XLSX lose quality?

The content is preserved; layout and style details may change between different formats.