In the U.S., comma is used in CSV, in Europe most of the software uses semicolon, since comma is used as a decimal point here. If your software does not allow to select the separator, open file with a text editor and replace all "," with ";".

Excel ->Save as CSV -> Includes semicolons for me.

Please note that this is a free Open Source add on, not part of the official UDT distribution. Take the source, change that character and compile it how you like it. You are free to modify it that it suits your needs. I invited everybody to join the project on codeplex, everybody can participate. If the Converter is inally ready for prime time, we can even think of including it later inside UDT.