Hi Karthi,
I'm not sure I got you right: You have a planning area that you can access via excel addin. You created some key figures in that planning area that are not available for planning view definition. Is that correct? If yes, how are your key figures defined? Are they time-dependent? If not, you will not be able to see them in excel, only in Analytics. If you defined a helper key figure, this key figure is not available in excel either.
Cheers,
Jonathan