[holyfeld]

I'm trying to read a (kindle) book in Calibre. I add it to my library. It shows up with a file format of TPZ.

When I double click on the book I get a pop up window that says "Book Name" Already in calibre with buttons to select all, select non, copy to clipboard, cancel and OK.

I've been "Canceling"

I checked other .tpz files. They all show as tpz and behave the same when I try to read them in calibre.

I can read other books in my library that are not tpz format.

Ideas about what's happening and how I can read tpz formatted books in calibre?

Using Calibre 2.3 OSX 10.9.5