I had to download WinRar to open it up on my phone. So you might try that because the extractor that came on my phone will not open a file with the rar extension.Unfortunately I couldn't open it!
Thats weird because I I open mine and it's the book. Did you unzip both files?I downloaded it, unzipped it. A blank PDF appears.
Ty downloading WinRar that's what I use to open files with a Rar extensionI'm posting from a phone, Android, so unfortunately totalcommander is not an option