Hi Jim,
Spatial Data (with Geometries) are usually exchanged by using
ESRI Shapefiles, not CSV or DBF files that are only intended
for exchanging "plain" (non-spatial) data.
exchanging data from one DB to another does not requires
any intermediate file format because you can perform a
direct copy, something like this:
ATTACH DATABASE <path> AS db_input;
SELECT CloneTable('db_input', 'my_table', 'my_table', 1);
you should be a little more specific about what are you
doing and what difficulties you are experiencing in
order to get some appropriate answer.
bye Sandro