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					Originally Posted by  Runnerbeen
					 
				 
				Thanks I've tried this but a lot of the books are failing to convert and I'm receiving messages like the below:  
  File "calibre/ebooks/metadata/epub.py", line 181, in get_zip_reader 
  File "calibre/utils/zipfile.py", line 774, in __init__ 
  File "calibre/utils/zipfile.py", line 809, in _GetContents 
  File "calibre/utils/zipfile.py", line 824, in _RealGetContents 
calibre.utils.zipfile.BadZipfile: File is not a zip file 
 
I'm not trying to add a zip file so I'm not sure what it means. Any halp gratefully received. Thank you. 
			
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 An ePub file is a .zip file. This seems to indicate that you have corrupted files.