You must enclose external-file in quotation marks.
fileref
is a file reference that has been assigned to an external file. Use the
FILENAME statement to assign a fileref.
See
For information about the FILENAME statement, see “FILENAME
Statement” in SAS Statements: Reference.
entry.markup
specifies an entry in a SAS catalog to write to.
Interaction
If you specify an entry name, you must also specify a library
and catalog. See the discussion of the PATH= option.
suboption(s)
specifies one or more suboptions in parentheses. Suboptions are instructions for
writing the output files. Suboptions can be the following:
(DYNAMIC)
enables you to send output ...
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