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					Originally Posted by  kiwidude
					 
				 
				Ok, so now we say the "Check xpgt file" becomes a search for epubs that have a non-empty xpgt file, and a "Remove selected xpgt file" option wipes the contents of it. 
			
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 I just tested clearing the contents of the file.  The resultant epub worked great in Adobe Digital editions and worked fine on my PRS-505.  So I give two 


 for the idea of identifying epubs with the file and the option to zero out the contents of the file.
FYI because I said I would find a before and after for you
Here is a page-template.xpgt file before calibre's conversion:
Here is the same page-template.xpgt file after calibre removed the margins:
Here is the contents of the page-template.xpgt file that I zeroed out and used in my reader.