I've never used excel before... i just have a simple graph of absorbance vs
concentration, and i have to interpolate values for concentration from values
of absorbances.
I read somewhere to use solver, but i can't figure out how to load it... i
went to add ins, and installed it, then went back to addins, selected solver,
clicked ok... nothing happens, i went back to tools, and it's not there...
how do i get the solver?? if that's even what i need to interpolate the data??

i'm using excel 2003