Freeware are one of those software that can be used by clients for some specific purpose without paying any cost.
PFC File Viewer
This software is free of cost means there will be no charges. You can use this tool to preview your PFC files in multiple view modes.
MBOX File Viewer
Users can utilize this software to view their MBOX files in multiple modes along with all mailbox data items. That too without paying any specific cost.