Overwrote Documentation page
Fragment of a discussion from User talk:Farhad
It is a Word file that you are trying to copy and paste? Word files, unfortunately, do not transfer easily to the wiki. The wiki uses a mark-up language to control format (basically a simplified version of html) that word does not export to by default.
The page has some tips and plug-ins that might help: Help:Converting_Documents_into_Wiki_Syntax.
If those don't do the trick, it is recommended that you copy/paste the text and format it with the help with the wiki toolbar (see:Help:Formatting_Toolbar)
Good luck!