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With no other idea available, and nothing to lose, I higlighted all the material in the temporary file which I opened as a text. Selecting copy, I then openerd a blank Word document and pasted in the material from the temporary file. Lo and behold, a lot of the lost material appeared, none of it underlined, bold, justified etc. but the text appears to be mostly there (from memory). Just as well I remembered some key words to find the temporary file. No need for others to post a reply now, unless some brilliant method to recreate lost files exists.