Dear Fellows,

I have a Sum Formula in an Excel Map and would like to connect the cells of this sum formula with a second Excel Map so that it would update itself automatically in the second Excel Map each time it would be altered in the first ( = source map) Excel Map. So I mean an external connection, I think?
Could anybody explain me how it is done in Excel for mac 2011, please? Thanks so much already in advance!

Kind Regards,

milli11175