FYI if you just have a question to an individual user you can always go to their profile and message them directly.
Or they could just go to the website and expand the ECAD section:
SW PCB is a standalone application from SW Premium. You will find a SW PCB Add-In in the Add-In list as of SW 2016 SP3. This Add-In enables the collaboration on the SW side. SW PCB provides the schematic capture and PCB layout along with the collaboration on the ECAD side.
SolidWorks does have an addin called CircuitWorks that reads a variety of files created from PCB software (IDF, IDX, Pads). This is an older technology that still works well with engineers that are not currently using SolidWorks PCB or Altium (with the SolidWorks PCB Connector for Altium extension).
So in answer to your question: Yes, SolidWorks Premium has a tool (CircuitWorks) that will read files for creating a SolidWorks Assembly of a PCB or for creating a board in SolidWorks and transferring it to a PCB Tool. It is not for designing or laying out PCBA's nor creating schematics.
SolidWorks PCB (As Earl mentioned) is a full functioning, and stand-alone tool for creating schematics, laying out the board and supplies symbols and part libraries all within the single application. It also has the ability to communicate with SolidWorks bidirectionally without the need to export/import.
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