Open Excel Files Online
XLSX is the Excel workbook format since Office 2007: a ZIP package with one XML part per worksheet. It can hold several sheets, formatting and formulas.
Excel Workbook (XLSX) · .xlsx
What you see in the Excel viewer
- Every worksheet as its own tab
- Sorting, filtering and column statistics
- Dates and numbers read correctly
- Export any sheet as CSV or JSON
Other ways to open Excel files
Windows
Excel or the free LibreOffice Calc.
macOS
Numbers, Excel or LibreOffice.
Phone & tablet
Excel and Google Sheets apps; or open it here without installing anything.
Frequently asked questions
Is my Excel file uploaded?
No. The file is read by your browser and shown on your own device. Nothing is sent to a server, and it is gone when you close the tab.
How do I open an Excel file without installing software?
Drop the .xlsx file on this page. It opens straight away in the CSV & Excel Viewer, on Windows, macOS, Linux, Android and iPhone alike.
What if my Excel file doesn't open?
The viewer checks the file's content, not just its name. If it is damaged or not really an Excel file, you'll see an error or can switch to the hex view to look at the raw bytes.
Can I convert Excel to another format?
Yes. The free file converter turns Excel files into other formats in your browser as well, without uploading them.