It doesn't ready on my desktop computer with calibre. It's possible it has DRM, but I doubt it. I originally got it as a folder with a structure like this:
Folder titled: META-INF
Folder titled: OEBPS
File titled: mimetype
There are lots of files/folders inside those other two folders.
Consequently, I zipped it up and changed the extension from .zip to .epub, which I have done before and it has worked.
What am I missing?
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