[slowsmile]

@ Thasaidon...I've run at least 5 different epubs through this plugin many times and cannot replicate your "file exists" error. I've also looked at the code and there isn't anything obvious there. The problem seems to be happening at the end of the prettifyXHTMLFile function when the original read file is finally deleted and the prettified output file is renamed back to the original read file name. I'll keep looking.