View Your Data
Directly in Browser
Open XLSX, CSV, and JSON files without sending your data to any server. Fast, secure, and privacy-focused.
Select Your File
Drag and drop your file here or click the button below to select a file from your computer.
Everything You Need, Nothing You Don't
View and analyze your data files with powerful features, all without compromising your privacy.
Privacy First
Your files never leave your browser or get uploaded to any server. What happens in your browser, stays in your browser.
Fast Processing
Open and parse large files quickly with our optimized browser-based processing engine.
Multiple Formats
Support for all common data formats including XLSX, CSV, and JSON files with automatic format detection.
Works Offline
No internet connection needed after the initial page load. Perfect for working with sensitive data.
Responsive Design
View your data on any device with our responsive interface that adapts to your screen size.
Spreadsheet View
View spreadsheet data in a familiar tabular format with sorting and filtering capabilities.
How It Works
Three simple steps to view your data files securely in your browser.
Select Your File
Click the upload button or drag and drop your XLSX, CSV, or JSON file into the browser.
Browser Processes
Your file is processed directly in your browser. No data is sent to our servers.
View & Analyze
Instantly view and interact with your data in a clean, intuitive interface.
Frequently Asked Questions
Everything you need to know about our file viewing service.
Is my data secure when using this app?
Yes, absolutely! Your data never leaves your browser. All processing happens locally on your device, and we don't use any external servers to handle your files.
What file formats are supported?
Currently, we support Excel files (.xlsx, .xls) and CSV files (.csv).
Is there a file size limit?
The file size limit depends on your browser's memory limitations. Generally, files up to 50MB should work without issues. For larger files, processing might take longer.
Why should I choose this over other viewers?
Our viewer prioritizes your privacy by processing files locally in your browser. There's no need to upload sensitive data to external servers, making it perfect for viewing confidential spreadsheets.
Do you store my files?
No, we don't store any of your files. Once you close the browser tab, all processed data is automatically cleared from memory.
Can I edit my files with this app?
No, this app is designed for viewing and analyzing data files only. For editing, please use a dedicated spreadsheet application.
Is there a mobile version of the viewer?
Yes, our viewer is designed to be responsive and works well on mobile devices. You can access it through your mobile browser.
Can I use this viewer offline?
Currently no. The viewer works with web workers and requires an internet connection to load the necessary libraries.
How do I report a bug or request a feature?
You can report bugs or request features through feedback forms available on our website. We appreciate your input!
What should I do if the viewer is not working?
If you encounter issues, try refreshing the page or clearing your browser cache. If the problem persists, please contact support.
How can I contact support?
You can reach our support team via the contact form on our website or through our social media channels.
Is there a premium version of the viewer?
Currently, we offer a free version of the viewer. We may consider premium features in the future based on user feedback.
Can I share files directly from the viewer?
No, the viewer does not support direct file sharing. You can download the processed file and share it through your preferred method.