need help for proc cimport

shiyiming

libname dp 'D:\Documents and Settings\xyz\Desktop';
data dp.class; set sashelp.class;run;

libname aa 'D:\Documents and Settings\xyz\Desktop\abc';
filename cc 'D:\Documents and Settings\xyz\Desktop\class.sas7bat';

proc cimport library=aa infile=cc;
run;
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I am learning PROC CIMPORT. As an example, I run the code above, but got error:
ERROR: Physical file does not exist, D:\Documents and Settings\tianm\Desktop\class.sas7bat.
So anyone can explain what is the PROC CIMPORT purpose, and how to correct the code above?

thx!!!

shiyiming

Your input needs to be a SAS transportable file generated by PROC CPORT, the counterpart of PROC CIMPORT. And you don't learn simple procedures such as PROC CIMPORT/CPORT until you really need them.
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shiyiming

什么叫'transportable file',这和一般的SAS data有何区别？
谢谢！