DocuFun

XLSXExcel spreadsheet

Open XLSX spreadsheets in your browser

See every sheet of an Excel workbook with dates, numbers and merged cells formatted the way you expect. Nothing is uploaded.

Drop a XLSX file to open it

XLSX and 95+ other formats

Opens on your device. Nothing is uploaded.

What you’ll see

  • Every sheet, one tab each
  • Numbers, dates, percentages and currency
  • Merged cells and column widths
  • Sticky row and column headers
  • Search across the sheet

How to open a XLSX file

  1. Choose your file

    Tap “Choose a file” above, or drag your .xlsx file anywhere onto this page.

  2. Read it instantly

    DocuFun opens it on your device in a second or two. Nothing is uploaded.

  3. Print, save or share

    Use Print to make a PDF, search inside the document, or download the original again.

Never uploaded

Your file is opened by code running in this page. It never travels to a server — not ours, not anyone’s.

Works offline

After your first visit DocuFun keeps working with no connection. Try it in airplane mode.

No sign-up

No account, no email, no cookies, no tracking. Open a file and read it. That’s it.

XLSX questions

Are formulas recalculated?

DocuFun shows the values Excel last saved with the file, which is what you see when you open it in Excel. It does not recalculate.

How big a spreadsheet can it open?

Files up to 200 MB open; very large sheets show the first 5,000 rows so your browser stays fast.

Can I open .xls (Excel 97–2003)?

Not yet — re-save as .xlsx or .csv and open that here.

Is it safe to open private documents here?

Yes. The file is read by code in this page and never leaves your device. DocuFun has no server that could receive it.

Open other files

From the makers of DocuFun

Need to edit, sign or merge PDFs?

PdfNext has free PDF tools that work the same way: right in your browser, with nothing uploaded. Try PdfNext.