In centered text, I'd like Excel to consider extra spaces on the left or
right. In text consisting of multiple lines, this would allow one line to be
forced off-center.

But Excel seems to ignore spaces in centering text. Is there any other way
to do this - possibly a character that Excel would consider in centering
text, but which is invisible on display. (Word can do this using a
non-breaking space.)

Any suggestions? Thanks.