There's no macro you can use.

When you're typing in a cell (or the formula bar), no meaningful macro can be
running.

If your strings were always the same format, you could have a macro run that
parses your string, picks out the characters that should be
superscripted/subscripted and puts it back.

But I think you'd need to say what the rules are for parsing the string.



kt wrote:

Also, I'm aware of the J-Walk add-in.. but you'd have to select and change
one cell at a time which is not very convenient for me because I have
equations x1+ x2 + x3 ... etc. throughout the worksheet...

--

Dave Peterson