I as trying to add a new function to the Tool Menu, when I accidently
deleted it completed and ended up with a new unwanted menu - where the
Tool menu was before. How to get the Tool Menu back?
If you go to Tools | Customize Toolbars/Menus, select the Menu Bar, and
click Reset, it should set all your main menus and built-in toolbars back to
the default.
If you have customized your menus or toolbars, you may want to explore the
Tools | Customize, Commands dialog, and drag the commands you are missing
back to the toolbars/menus yourself, rather than wipe out your
customizations by clicking Reset. To bring the Tools menu back, look in
the category Built-in Menus--I'm not sure this will work but it's worth
a try.
If it doesn't work, but you have highly customized menus, take a COPY of
your Normal template before doing anything, and maybe something things
can be recovered from that. Since you didn't say which version of Word
you are using, I don't know where your Normal template is, so see here:
http://word.mvps.org/Mac/MacWordNormal.html