The CA CMDB Integrations Green book, page 87 says "spectocmdb.pl can be installed in any directory, the best practice is to install it under $SPECROOT\custom\spectocmdb". However, out of the box Spectrum 9 and CMDB R12.1 do not include the file spectocmdb.pl.
Spectocmdb.pl includes GRLoader and the Modeling Gateway Commands which are used to automate the export/import process. This file needs to be obtained from CA Services as part of a CA Services engagement. Please contact your local CA Services representative.