Specify the library reference for the SAS library that contains the source files to be exported and the file reference to which the output transport file is written. The LIBNAME statement assigns a libref for the SAS library. The FILENAME statement assigns a fileref and any operating environment options for file characteristics for the transport file that PROC CPORT creates.

libname source 'SAS-data-library';
filename tranfile 'transport-file'
                   host-option(s)-for-file-characteristics;