The FinancialDataTools.com CSV to Excel Converter is a free, browser-based tool for converting CSV files to Excel format. It runs entirely in your browser — no file is ever uploaded to any server.
How It Works
Drop your CSV file onto the left panel or click Open to browse. Your source data is previewed in a table. Click Convert to Excel to generate the output in the right panel. Click Export Excel to download the result file.
Privacy and Security
All file processing happens inside your browser using JavaScript. No file content is transmitted to any server. Your financial data stays private on your device.
Is the CSV to Excel Converter free?
Yes, completely free with no signup required.
Does my file get uploaded to a server?
No. All processing is local in your browser. Nothing is uploaded.