Prefill correct settings for csv and tsv

Change-Id: I21f3109530bc79c6ca1dcc247da987ee4795d086
Reviewed-on: https://gerrit.libreoffice.org/7142
Reviewed-by: Michael Meeks <michael.meeks@collabora.com>
Tested-by: Michael Meeks <michael.meeks@collabora.com>