In reply to Laura.

That particular error can happen with DBMS=EXCEL or EXCELCS if SAS cannot communicate with either the Microsoft data access libraries (ACE engine) or the SAS PC Files Server (which must be installed and configured for autostart). However, I always recommend DBMS=XLSX for SAS 9.4 and later -- this does not rely on either of those external items, but instead can read/interpret XLSX files directly. If you're having problems with DBMS=XLSX, then I suspect you're getting a different error. Can you share those details or else open a SAS Tech Support case?