I turned on file and print sharing on the PC. Right clicked the folders to share. Using es file explorer, scanned for lan. Logged onto the PC from nexus with same user name and password as set up on PC at boot. Read, play, or transfer PDF, music, videos over wifi. Zip and rar built into esfx. Methods for file sharing vary with computer and os.
You can also try solid explorer which now has chromecast capability.
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