Excel to CSV Converter

Convert Excel Files to CSV Online

The CSV-X Excel to CSV converter allows you to transform Microsoft Excel files (XLSX and XLS formats) into plain CSV text. CSV is the most universally supported data format, compatible with virtually every data tool, programming language, database, and application. Converting Excel to CSV is often necessary when importing data into databases, processing data with scripts, feeding data into APIs, or working with tools that require plain text input.

Simply drag and drop your Excel file or click to browse. The converter reads the first sheet of your workbook using the SheetJS library, one of the most comprehensive Excel parsing solutions available for JavaScript. The data is then formatted as RFC 4180-compliant CSV using Papa Parse, properly handling special characters, quoted fields, and various data types. The conversion preserves your data integrity, including numbers, dates, and text values.

No Software Installation Required

Unlike desktop conversion tools, CSV-X runs entirely in your web browser with no installation required. There is no need to have Microsoft Excel installed on your computer. The converter works on any modern browser across Windows, macOS, Linux, and mobile devices. Your Excel files are processed locally using JavaScript and never uploaded to any server, ensuring complete privacy and security for your data.