How to retrieve data

hi,

I am not a java programmer, but i need help from java experts.

Our company purchased one Bussiness directory desktop application , which was developed by Java. Why we purchased these for getting data to displayin our website. Now the application allows us to copy data , but this application contain huge data.So each items one by one will be a long procedure. So I want to know there is any way to take the data or databse? Please give needful advice

Thank You