Open an XLSX Without Excel

Quickly peek inside a spreadsheet without buying Excel or uploading to Google Sheets.

No login requiredFiles stay private

Drop files here, or click to browse

XLSX, XLS, CSV, ODS no file size limit

Browse files

Your files never leave your device. All processing happens locally in your browser.

Open .xlsx, .xls, .csv, or .ods spreadsheets without Excel or Google Sheets. The file is parsed entirely in your browser.

spreadsheets tips

👀

Drop an .xlsx, .xls, .csv, or .ods file to view its contents instantly in a table.

🗂️

Multi-sheet workbooks show tabs — click to switch between worksheets.

🔒

The file is parsed in your browser, so you can safely open a spreadsheet from email without uploading it anywhere.

↔️

Need the data elsewhere? Export the active sheet to CSV or JSON.

Choose File

Drop your file into the tool above. It stays entirely on your device — nothing is sent to any server.

Process

The tool processes your data instantly in your browser using JavaScript. No server, no waiting.

Download

Get your result instantly. Nothing is stored after you leave the page — complete privacy.

✓Completely free — no hidden costs, ever

✓No account, email, or login required

✓Files never leave your device

✓No file size limits whatsoever

✓No watermarks on any output

Convert XLSX to CSV

Open an Excel file and export a sheet as clean CSV

Convert XLSX to JSON

Turn a spreadsheet into JSON for use in code and A

Safely Inspect an Unknown Spreadsheet

View a spreadsheet from an untrusted source withou

View a Spreadsheet on Your Phone

Open an Excel attachment on mobile without install