Not to resurrect a thread, but I've got another piece of data on this: %let crmms4dt=20140915; %let crmms2dt=20140811; %let datadir=/hli/ims/nbtz3jg/sla/prod/data/; PROC IMPORT OUT=crm_ms4             DATAFILE= "&datadir.Cumulative SLA Research Reports/Cum SLA Research Report &crmms4dt..xlsx"             DBMS=XLSX REPLACE;      SHEET="LLD";      GETNAMES=YES;      MIXED=NO; RUN; proc import out=crm_assign_request_9b             DATAFILE= "&datadir.Trigger To Case Create Date/Dashboard CRM Daily &crmms2dt..xlsx"             DBMS=XLSX REPLACE;      SHEET="9B";      GETNAMES=YES;      MIXED=NO; RUN; The first one works and the second one doesn't, failing with the double slash file name error message. ... View more