Open XLSX File Online
View XLSX, XLS, and CSV spreadsheet files directly in your browser.
No Excel required.
Click to upload or drag and drop
XLS, XLSX, or CSV
How to Open XLSX Files Online
1. Select or drag your XLSX, XLS, or CSV file above.
2. We'll instantly convert and preview it in your browser.
3. Click “Open This File” to open XLSX file online without hassle.
Does All Excel Formula Work?
Yes, all Excel formulas work when you open XLSX file online using our tool. Just type your formulas as needed. This app is designed to quickly load and read Excel files directly in the browser—perfect for when you don’t want to open another app just for a small task.
Why Use an Online XLSX Viewer?
Choosing to open XLSX file online allows you to instantly access spreadsheet data without downloading or installing Excel. Whether you're using a phone, tablet, or computer without Office installed, our online viewer is the fastest way to view your spreadsheet files.
Supported File Types & Upload Limits
- XLSX (Microsoft Excel Open XML Spreadsheet)
- XLS (Excel 97-2003 Workbook)
- CSV (Comma-Separated Values)
Frequently Asked Questions
Absolutely! You can open XLSX file online on phones, tablets, and desktops without any issues.
No signup or login required. Open your XLSX file online for free anytime.
Yes, you can edit, apply formulas, and export in different formats after you open XLSX file online.