This tool converts Comma Separated Values (CSV) files into the classic Microsoft Excel 97-2003 (XLS) format using the BIFF8 standard. This format is useful for compatibility with older systems or specific software requirements.

• Upload your .csv file.
• The tool parses the CSV data, assuming the first row contains headers.
• A downloadable .xls file (BIFF8 format) is generated.

Note: Complex CSV files with inconsistent quoting or delimiters might not parse correctly. The generated XLS file will contain the raw data in a single sheet named 'Sheet1'.