This was a very useful thread for me. I had installed ES File Explorer when I first got my tablet, but hadn't gotten around to using it to access files on my desktop PC. However, this thread prompted me to get off my a-- and figure it out. After Googling around for an hour or two I finally got all the sharing permissions etc configured correctly on the PC, and did the appropriate setup stuff on the Nexus 10. As a result I can now sit in my recliner in the living room and play music, view pics and pdf files, and even view Microsoft Office documents and spreadsheets, all of which reside on the PC in the bedroom. Pretty cool!