Test this on a copy of the file:
Find \D and set the find formatting to the Body Text paragraph style
Set the change formatting to character style [None]
This should remove any character styles from the body text except those applied to digits.
Thanks for the fast reply Peter, It Works! indeed it does remove all character style but the superscript.
Just curious, this GREP Comand will remove all other characters style in that body text too, right? I have some italics apply somewhere but will not be that much of problem putting again as the superscript is.
Actually, it can be set to remove only the character style you don't want if you also choose that character style in the find format, so it would remove character style a, but not b, c or d if you add style a to the format option.
In fact, if there's only the one style to remove, you don't need the \D (unless that style to be removed is also applied to digits).
Thanks for the extra info Peter ;-)
I will try a couple of variation to remove different character styles then.