Online Excel Viewer

View, Convert and Edit Excel (XLSX, XLS) & CSV files instantly.

Drop spreadsheet here

Drag & Drop Excel File

Supports .XLSX, .XLS, and .CSV files.
Your file is processed locally in your browser for maximum security.

Secure client-side processing

About Online Excel Viewer

This tool allows you to view, read, and convert Excel spreadsheets directly in your browser. It supports modern XLSX files, legacy XLS files, and CSV data. No software installation is required, and since all processing happens on your device, your data remains 100% private and secure.

Instant View

Drag and drop your file to view it instantly. No upload waiting time.

Easy Conversion

Convert your Excel sheets to JSON, CSV, or HTML with a single click.

Private & Secure

Files are processed in your browser. No data is sent to any server.

Supported Formats

  • XLSX: The default XML-based file format for Excel 2007 and later.
  • XLS: The binary file format used by Excel 97-2003.
  • CSV: Comma-Separated Values, a common format for data exchange.
  • ODS: OpenDocument Spreadsheet format (experimental support).