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ConvertBox

Excel Viewer

View Excel files (.xlsx, .xls) directly in your browser. Switch between sheets, search, and export to CSV.

📑

Upload Excel File

Drag & drop or click to select an Excel file

Max file size: 50MB

or drag and drop · press Enter to browse

How to Use

  1. Upload an Excel file (.xlsx or .xls)
  2. Switch between sheets using the tabs
  3. Search and sort the data
  4. Export the current sheet as CSV
  5. Copy the formatted or generated result directly to your clipboard.
  6. Use the result in your application, configuration, or documentation safely.

All processing is done in your browser, and files are never sent to a server.

Frequently Asked Questions

No, the file is read entirely in your browser. Nothing is uploaded.
Both .xlsx (modern) and .xls (legacy) formats are supported.
This tool is read-only. For editing, try our CSV Viewer & Editor tool.
Yes, if the Excel file has multiple sheets, you can switch between them using the tabs.
Files up to 50MB are supported. Very large files may take a moment to load.
Yes, you can export the currently viewed sheet as a CSV file.
Yes, the viewer is responsive and works on mobile devices.
No. All tools on ConvertBox are 100% free. We do not insert watermarks, limit features, or require any registration or payment.
Yes. Once the page and its local library dependencies are loaded in your browser, the conversion logic runs completely offline without needing an active internet connection.

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