I don't know how I did it but I started to edit the doc which is 1,500 pages in length and after a couple of changes I noticed that both the page numbers and the lines that went across the pages where I didn't want them had gone. On top of that I found that I was able to access the Styles and headings facility. I suspect that there is a device that allows one to get into the doc and check what happened but I don't know how to use it and I'm satisfied anyway but thanks for your help.