mobi file, the cover.jpg and the metadata.opf file.

Note: that when I copied them from the pc I copied the calibre folder which contains. And then in Calibre Companion, under 'book formats and folders', I changed the default folder to point to the folder where I had copied the books.

I tried copying the books (using windows explorer) from where they are stored on my PC, directly to a directory on my tablet (i.e. I tried connect/share -> Connect to folder but no matter what folder I pick on the tablet it complains about it. Note: sometimes the options aren't grayed out but Send to main memory sends the books to some unknown location. I tried 'send to device' but I don't see the tablet listed and all of the options that say 'Send to xyz' are grayed out. Is there a way, in Calibre on the PC to simply copy, or send the books I'm interested in via the wired connection to the tablet? mobi file the tablet says it has no idea how to open that type of file. On the tablet, I have Kindle for PC, Aldiko, Calibre Companion, and 'My Library' (which came with the tablet). The only problem i have is that the ebooks I've copied to the tablet I can't seem to open. So, I plug the table into my PC and the Android file system is now visible in my Windows Explorer window. Given that my PC and tablet are in the same house, it would be easier to just plug it in. just to get a book to appear on my tablet. The wireless connection randomly works (mostly not) and it's just too frustrating to continually stop and restart the server, cycle power on my router, set and reset the IP address etc. I've tried working with Calibre companion on my Android tablet but I've given up.

Calibre android app for mobi files