[libreoffice-users] replace normal font with superscript

Good evening
Thisis probably a rather stupid question and has been answered on this
list (somewhere) a million times ...

(The job is already done - manually - so there is no hurry; I would like
to know the trick.)

I had a piece of text (txt file), which contained a lot of things like
"m2" (square meter).
Working in Writer I tried to do a "find and replace" and turn the "2"
into superscript.
But I could not figure out how that works. I ALWAYS got "m2" as
superscript, even I selected only "2" and then format -> superscript.
(after I while of trying I gave up and replaced those number manually)

What is the trick required to turn "2" into superscript?
But ONLY in "m2" and not all "2", since there were lots of other numbers
too.

Thank you in advance.
Thomas

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