If you want to understand how to use the converter, check the FAQ http://www.csvconverter.biz/faq. This page is under construction and we will be adding more and more details.
Also, we will soon have video tutorials.
If you found a bug, you can report it here http://www.csvconverter.biz/project/issues. Before reporting a bug, please search for relevant issues and add comments to it, if applicable.
Lastly, you can use the Contact page to send a direct message http://www.csvconverter.biz/contact