Hi
The formula I started to write is
=IF('Lookup tables'!$C$51=1,T2,IF('Lookup tables'!$C$51=2,U2,IF('Lookup tables'!$C$51=3,V2,IF('Lookup tables'!$C$51=4,W2,IF('Lookup tables'!$C$51=5,X2,IF('Lookup tables'!$C$51=6,Y2,IF('Lookup tables'!$C$51=7,Z2,IF('Lookup tables'!$C$51=8,AA2,0))))))))
I...