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Excel Viewer

Open Excel files right in your browser. Upload an XLSX file to preview sheets as a table, then inspect rows and columns with no installs.

Excel Viewer



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Last updated: April 20, 2026

Created by: Eon Tools Dev Team

Reviewed by: Bhabin Khadka



What this tool does

This tool opens an Excel file right in your browser and shows its contents as a table, with no spreadsheet software needed. Upload an .xlsx or .xls and you can read the data straight away, on any device. It runs entirely in your browser, so the file is never uploaded.

How to use it

  1. Select your Excel file.
  2. Press Extract to load it.
  3. Read the data in the table that appears. Reset clears it for another file.

How it works

The tool reads your Excel workbook with the SheetJS library and renders its contents as an HTML table. There is no installation and no plugin, just the data shown as rows and columns. It all happens on your device, so the spreadsheet stays with you.

Open a spreadsheet without the software

This is the real convenience. Someone emails you an Excel file, but you are on a computer without Excel installed, or on your phone, or you simply do not want to fire up a heavy spreadsheet program just to glance at a few rows. Dropping the file here lets you read it in seconds, wherever you are, in any browser. It is ideal for a quick look, checking what a download contains, confirming a file is the right one, or reading a sheet someone sent before deciding what to do with it. And since nothing is uploaded, you can open a spreadsheet with sensitive figures without it ever leaving your device.

What it shows

To set expectations, this is a viewer for the data rather than a full stand-in for Excel. It displays the first sheet of the workbook as a table of values, so a file with several sheets will show that first one, and the things Excel layers on top, formatting, live formulas, and charts, are not rendered here; you see the underlying values. That is exactly right for reading and checking a file. When you need to edit, sort, or use formulas, open it in a spreadsheet app, and if you only need the raw data elsewhere, Excel to CSV extracts it. For CSV files, the CSV Viewer does the same previewing.

Questions people ask

Do I need Excel installed to use this?

No. That is the point. The file opens and displays right in your browser, on any device, with no spreadsheet software required.

Does it show all the sheets?

It shows the first sheet of the workbook as a table. For a quick read of the main data that is usually what you want.

Does it show formatting, formulas, and charts?

No. It shows the underlying values as a table rather than the spreadsheet's formatting, live formulas, or charts. For those, open the file in a spreadsheet application.

Is my file uploaded?

No. The preview is built entirely in your browser, so your Excel file stays on your device.



Bhabin Khadka

Bhabin Khadka is a software engineer and graduate student at the University of New England with experience in backend development and scalable systems. He has a particular interest in file systems and the kinds of technical utilities that depend on dependable handling of structured data. At Eon Tools, he reviews file and document tools, as well as encode and decode tools.