Create CSV file in D365FO using x++

 Create a CSV file in D365FO using x++.

	commaStreamIo       iO = commaStreamIo::constructForWrite();
	Filename            filename = "MyFile.csv";
	
	// Field List
	container header = ["Account Number",
			    "Name",
			    "Ph no"];
						
	iO.writeExp(header);
	header = conNull();

	while select myTable 
	{
	    container line =  [myTable.AccountNumber,
			        myTable.Name,
				myTable.PhNo];

	    iO.writeExp(line);
	}

	System.IO.Stream stream = iO.getStream();
	stream.Position = 0;

	System.IO.StreamReader reader = new System.IO.StreamReader(stream);

	str  csvFileContent = reader.ReadToEnd();

	File::SendStringAsFileToUser(csvFileContent,  filename);
	
	info(strFmt("CSV file %1 is created", filename));
		

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