Export SSRS report to CSV
The only way I have seen this work is by adding the double quotes inside the report yourself, but that can be a bit tedious if you have many textboxes and many reports.

Something like this should work though:

=IIF(Globals!RenderFormat.Name = "CSV",  """" &amp; CStr(Fields!MyField.Value) &amp; """", Fields!MyField.Value)


This code checks to see if it's being rendered to csv and adds the quotes if that's the case.