Work with datasource with Excel using groovy in SoapUI Pro?

I have worked with Datasource with Excel file in SoapUI Pro 4.5.0 tool. Its working fine while doing manually in SoapUI Pro 4.5.0 tool. But I need to execute this process through the script (Groovy). That means, getting input from excel and assign them to Datasource option.

Is it possible?

The following URL I have used in my sample.

http://www.webservicex.com/CurrencyConvertor.asmx?wsdl

Thanks in Advance