Hi,
I don't know if anyone can help me with this at all...?

I have some custom number formats that put a prefix of either '+' or '-' in
front of the value in a cell, depending on whether they are a positive or a
negative value. Not that exciting, but useful. However, when I want to use
this format it never seems to be in my list of custom formats, meaning that I
have to locate a spreadsheet where I know that I used this format and copy it
over.

So my question is; does a custom number format only exist within the
spreadsheet where it was created (i.e. like a non-PERSONAL macro), or is
there a way in which these can be made 'universally' available?

Thanks,

Dickie