Excel (XLSX, CSV) Viewer & Converter Online

Inspect and convert Microsoft Excel spreadsheets (.xlsx, .xls) and CSV files in your browser. Multi-sheet navigation, live search, and instant export to CSV, JSON, or Markdown.

Select or drop an Excel (.xlsx, .xls) or CSV file

View and inspect spreadsheets in your browser without MS Office. Export to CSV, JSON, and Markdown.

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How to use

  1. Drop your Excel (.xlsx, .xls) or CSV document into the upload dropzone.
  2. Browse table columns, switch between workbook sheets, and search data.
  3. Export the active sheet to clean CSV, formatted JSON, or Markdown table syntax.

FAQ

Do I need Microsoft Excel or Office 365 installed?

No. The spreadsheet engine runs 100% inside your web browser on mobile or desktop.

Are financial spreadsheets uploaded to any remote server?

No. Files are read completely in memory on your local machine using client-side JavaScript. Zero telemetry, zero uploads.

Can it handle multiple workbook sheets?

Yes. The viewer extracts all sheets and displays clickable tabs to switch between them effortlessly.

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