The conversion of the project was successful.

The new directory structure is as follows:

C:/Users/Behrooz/Desktop/SPICE Examples - Orcad New Version/Appendix B-PS.12
    Appendix B-PS.12.opj
    Appendix B-PS.12.dsn
    Appendix B-PS.12.dbk
C:/Users/Behrooz/Desktop/SPICE Examples - Orcad New Version/Appendix B-PS.12/Appendix B-PS.12-PSpiceFiles
    Example PS.12.1 AC Gain
    Example PS.12.1 Slew Rate
