To resolve this problem you can use third party tool, There are lots of tool in the market which having functionality to import and export data from file. Some famous tool such as MindStick DataConverter, AutoConverter etc which performed such kind of task.
MindStick DataConverter is free charge tool so you can easily download it.
MindStick DataConverter Download Link: http://www.mindstick.com/Product/ProductDC.aspx
I hope it will be resolve your problem.