I thought I knew how to do this, i.e. put ALT+0010 in the find box, replace
with something else. However when I try and do this in a file which contains
a lot of very long text strings (the first one is 5000 characters, the
largest nearly 10000), it doesn't work. Even if I try to replace "a" with
"b", it tells me "Formula is too long", and stops the replace function dead
in it's tracks. (this even though the field is not a formula)

I can copy an individual string to Word, and replace "manual line breaks" -
that works. However, I've got hundreds of these strings, and it has to be
done on a regular basis, so that isn't a viable option.

Any suggestions very welcome.
Thanks,
Geoff.