Kodi Network Share

I’m trying to figure out how to share a folder on my Raspberry pi Kodi. I have it connected to a couple hard drives and would like to access those files. I’m having a hard time finding some instructions on doing that. My research is yielding info on doing the opposite, accessing a shared network folder from the Kodi. Id like to be able to send files to the Kodi’s connected drives from my PC. I’m hoping someone here can point me in the right direction.