The schematic menu command Tools=>Export Netlist allows you to generate the ASCII netlist for PCB layout. Note that you would have to make a set of symbols that have the same order of pin netlist order. For example, if you want to import an LTspice schematic's netlist into ExpressPCB you would have to make a set of symbols for either LTspice or ExpressPCB that had the same netlist order for every symbol you use. Otherwise diodes could netlist backwards or transistor lead connections could be scrambled.
The following formats are available: Accel, Algorex, Allegro, Applicon Bravo, Applicon Leap, Cadnetix, Calay, Calay90, CBDS, Computervision, EE Designer, ExpressPCB, Intergraph, Mentor, Multiwire, PADS, Scicards, Tango, Telesis, Vectron, and Wire List.