[libreoffice-users] calc give a value a name?

Hi All,
I have a project in calc that uses 2 sheets 1 data 2 ladder

here is what one entry looks like on data A5 1.  B5 J Beckman C5 3.916

here is a enrty for the latter sheet where it is displayed 
=CONCATENATE(data.A5, " ", data.B5," ",data.C5)

here is my question in place of A B and C can i give each a name like 
pos name and et if so how?
and now would it change  =CONCATENATE(data.A5, " ", data.B5," ",data.C5) ?
thanks


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