How to used a blank delimiter when exporting CSV

Hello,

I would like to export crystal report into csv but withouter a delimter character around fields,

here is a snipper of my code:

ExportOptions exportOpts = new ExportOptions();
exportOpts.ExportDestinationType = ExportDestinationType.DiskFile;
exportOpts.ExportFormatType = ExportFormatType.CharacterSeparatedValues;
DiskFileDestinationOptions DiskFileDestinationOpt = ExportOptions.CreateDiskFileDestinationOptions();
DiskFileDestinationOpt.DiskFileName = filename;
exportOpts.ExportDestinationOptions = DiskFileDestinationOpt;
CharacterSeparatedValuesFormatOptions csvOptions = new CharacterSeparatedValuesFormatOptions();
csvOptions.Delimiter = "";
csvOptions.SeparatorText = "";
exportOpts.ExportFormatOptions = csvOptions;
crystalReportDoc.Export(exportOpts);

the problem is whenever I use an empty string for the delimiter property, crystal report will use the default double quote character in the result csv file.

can someone please assist on how to export a csv document with a blank delimiter?