Support Center

Simply click the "Upload File" button or drag and drop your CSV file into the upload area. Your file will be processed locally in your browser - we never store your data on our servers.

We support CSV, Excel (.xlsx, .xls), JSON, XML, SQL, HTML tables, and Markdown tables. You can convert between any of these formats using our tools.

Absolutely! All file processing happens locally in your browser. Your files never leave your device or get uploaded to our servers. We have no access to your data.

File size limits depend on your browser and device memory. Generally, files up to 100MB work well. For larger files, consider splitting them into smaller chunks first.

Our tools work on all modern browsers including Chrome, Firefox, Safari, and Edge. We recommend using the latest version for the best experience.

Common issues include: unsupported file encoding, malformed CSV structure, or very large file size. Try checking your file format and encoding (UTF-8 is recommended).

Yes! Most of our tools include undo/redo functionality. Look for the undo button in the toolbar after making changes to your data.

After processing your data, click the "Download" or "Export" button. Your file will be generated and downloaded directly to your device.

Try refreshing the page, clearing your browser cache, or using a different browser. If issues persist, please contact our support team with details about your browser and the specific problem.

Upload your CSV file, then use the cleaning panel on the right side. You can remove duplicates, fix formatting, standardize data, and more. Each action can be undone if needed.