The extension specified
on EXTENSION= is used when the output destination is a storage location.
The extension is ignored when the output destination is a file. To
specify the output destination, you can use a FILENAME statement,
or the graphics options GACCESS= or GSFNAME=.
Assuming that the output
destination is a storage location,
-
if EXTENSION='.', no extension
is added to the filename
-
if EXTENSION=' ' or EXTENSION=
is not used, the driver's default extension is added to the filename
-
if the driver has no default extension,
SAS/GRAPH uses the default extension .GSF.