How to convert a .xls file data to a .dbf file?
With DBF to XLS Converter you cannot convert a Microsoft Office Excel file into a Database file. This application only converts .dbf files to .xls files. You can try XLS to DBF Converter instead.
Have you tried Total Excel Converter? http://www.coolutils.com/TotalExcelConverter
It is not free, but it has a 30-day trial, try and see if it suits your needs