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Excel Viewer

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View Excel (.xlsx, .xls) spreadsheet files directly in your browser — no Microsoft Office needed. Switch between sheets and search through your data.

Drop Excel file here or click to upload

.xlsx and .xls files supported

Upload an Excel file above to view its contents.

How to View an Excel File

  1. Click Open File or drag and drop your .xlsx or .xls file onto the upload area.
  2. The spreadsheet renders as a formatted table instantly.
  3. If the file has multiple sheets, switch between them using the sheet tabs at the bottom.
  4. Scroll horizontally and vertically to browse large datasets.

Why Use a Browser-Based Excel Viewer?

  • No Microsoft Office required: Open Excel files without a Microsoft 365 subscription or installed Office software.
  • Quick preview: Check the contents of an Excel file before downloading or opening it in a full application.
  • Shared computers: View spreadsheets on computers where you can't install software.
  • Cross-platform: Works on any operating system — Windows, macOS, Linux, iOS, and Android.
  • Privacy: Your file is processed locally in your browser — not uploaded to Google Sheets, OneDrive, or any cloud service.

What Excel Features Are Supported

  • Multiple sheets: All sheets are loaded and accessible via tabs.
  • Cell values: All text, numbers, and dates display correctly.
  • Formula results: Computed cell values from pre-calculated formulas are shown.
  • Column headers: Alphabetical column labels for easy reference.

Note: Cell formatting (colors, borders, fonts), charts, macros, and VBA are not rendered. This is a read-only data viewer, not a full Excel replacement.

Supported File Formats

  • .xlsx — Excel Open XML Spreadsheet (Excel 2007 and later)
  • .xls — Binary Excel Spreadsheet (Excel 97–2003)

Both formats are read using SheetJS, a widely-used open-source spreadsheet library.

Frequently Asked Questions

Does it show formula results or formula text?

The viewer displays the computed result values of cells, not the formula syntax. Formula results that were already calculated and saved in the Excel file will show correctly.

Is my spreadsheet data private?

Yes. Your file is read entirely in the browser using JavaScript. Nothing is uploaded to any server. Your spreadsheet data stays on your device.

Can I edit the spreadsheet?

No — this is a read-only viewer. To edit, use Microsoft Excel, Google Sheets (import the file), or LibreOffice Calc. You can convert the file to CSV using the Excel ↔ CSV Converter if you need to edit the raw data.

What is the maximum file size?

There's no server-imposed file size limit since everything runs in your browser. Very large files (50MB+) may take a few seconds to parse depending on your device's memory and processor speed.

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