If you plan to use an existing
external file only once in your SAS program, then you can allocate
it by specifying the physical filename in a SAS statement or command.
For example, this INCLUDE command allocates an existing sequential
data set and includes it into the
PROGRAM EDITOR window:
include 'myid.report.data'
Similarly, this PROC
PRINTTO statement allocates a new PDS member:
proc printto print='userid.output.data(rockport)' new;