How to open xlsx files without Excel — free in your browser

If you received an xlsx file on a computer without Excel, you can open it in the XEL9 OFFICE spreadsheet editor. Formulas, formatting and charts are shown as they are, and you can edit and save back to xlsx.

Steps

  1. Open the XEL9 OFFICE spreadsheet editor.
  2. Click “Open file” or drag the xlsx file onto the page.
  3. Edit values and formulas and apply any formatting you need.
  4. Save as xlsx, csv or ods.

Open an xlsx file in the spreadsheet editor

Good to know

  • Macros (VBA) are kept but never run.
  • csv and ods files open the same way.
  • Very large files may take a while to open depending on your device's memory.

Frequently asked questions

Are formulas calculated?
Yes. Formulas are recalculated, and charts, pivot tables and conditional formatting are supported.
Can I open it on a phone?
Yes. It opens in a phone browser too.
Is my file uploaded to a server?
No. Files are processed inside your browser on your device and are not sent to XEL9 servers.
Is it free? Do I need an account?
It is free and runs in the browser with no sign-up and nothing to install.

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