The specified output file must be an external file, not a SAS data library. It cannot be a CMS MACLIB or an OS/390 data set. If no FILE statement is specified, then any PUT statements in your SAS ...

After you allocate an external file, you can read from the file in a SAS DATA step by specifying it in the INFILE statement, the INCLUDE command, or the %INCLUDE statement. This section describes the ...