If I understand you correctly, you're saying your Excel
window's Title bar is too far up that you can't see it
anymore?
If that's the case, then goTo your taskBar, right-click
on the Excel item (ie: the document you're working on),
and select "Move". Your cursor will turn into a '+' and
will 'stick' itself onto that Excel window's Title bar.
Then, just use your [Down-Arrow-Key]until you see the
titleBar, and then hit [Enter] to 'release' the cursor
from the said titleBar.
Happiness should then ensue.