Each file comes complete and are all copywritten. The answer whether can you edit the file is no. No file or content on this site shall be edited. 

When you buy book or product from us you can share what you learn but selling not the actual products themselves. To resell any of our products is a direct violation of our copyright. 

To open the files, you will need to have properly working computer, and or working email address.  A link maybe sent to you or you might be asked to read the document directly on the site. 

Oftentimes we have sales, discount and even free offers that come during the seasons. To get our free offers you will want to visit site regularly to check to see what offers we have.