About this Tool

This tool converts Comma Separated Value (.csv) files into the classic Microsoft Excel 97-2003 Spreadsheet (.xls) format directly in your browser.

• Files are processed locally; no data is uploaded to any server.
• Maximum upload file size is 5MB.
• The output format is compatible with older versions of Excel.
• Basic validation is performed, but ensure your CSV is well-formed.
• Characters like < > " ' ` = are removed from data during conversion as a basic security measure.