If you are using Excel spreadsheet and exporting data to CSV file to
generate test data, you should try this one. http://www.huaonline.com/dadada

I wrote it for myself (for fun, therefore it's FREE). But I'm using it intensively in the
company. Not only data files, I also use it to create PL/SQL scripts.
Unfortunately, I haven't got a proper user manual. It can do more than
what I put together on 'paper'.

Phuoc Can HUA