Almost all terminal emulators (including PCOMM) have a file transfer menu invoked from the menu pull downs at the top of emulator window. I remember using the PCOMM file transfer menu, but how I got to it has faded into oblivion, though you should be able to find it by looking through the menu pull downs. PCOMM also provides the TRANSMIT and RECEIVE commands you can use from the Windows CMD screen and in .BAT files started from the CMD window.
The file transfer menus for all emulators have the same general information since they all feed the IND$FILE TSO command, but the details are somewhat different. My very faded memory of PCOMM is their menu was relatively unfriendly, but that was back in the 20th century. Maybe it has improved.