Free Online XLSX Viewer

Open XLSX Files Instantly

View Microsoft Excel Spreadsheet files directly in your browser. No installation, no account. 100% private — files never leave your device.

Drop your file to view it instantly

or click to browse from your device

Desktop: up to 50MB · Mobile: up to 20MB

Optimized for .XLSX files

How to view XLSX files online

1Drag & drop your .xlsx file into the zone above, or click to browse
2Your file opens instantly — no upload to any server
3Scroll, zoom, and navigate your document directly in the browser
4Download the original file anytime using the Download button

Frequently Asked Questions

Is this XLSX viewer free?

Yes, completely free. Open any XLSX file (Microsoft Excel Spreadsheet) with no limits, no sign-up, and no installation required.

Is it safe to open XLSX files here?

Your XLSX file is processed entirely inside your browser using client-side JavaScript. It never leaves your device, is never uploaded to a server, and is automatically removed when you close the tab.

What is the file size limit?

Up to 50 MB on desktop and 20 MB on mobile. For larger files, use our Convert tool which can process and compress files efficiently.

Need to convert this XLSX file?

Convert XLSX to PDF, PNG, DOCX, and many more formats.

Convert XLSX Files