professor-d

I just bought a book from eReader.com, and downloaded it (and the eReader program) in a zip file. But when I try to extract the file, a message says there are no files to extract. I see a zipped folder, and apparently I downloaded something because it took a while Just in case, I downloaded it all again, but the same thing happened. What am I doing wrong?

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"I'm not good in groups. It's difficult to work in groups when you're omnipotent." -Q