If E1=A4 and E2=A8, will E3=A12 and so on? If so, one way is to write A1 in B1, A2 in C1, A3 in D1 and A4 in E1. On the line below, write A5 in B2 A6 in C2, A7 in D2, A8 in B in E2.
Once you�ve done that, highlight the area containing those eight cells so that you see a wee �+� in the bottom right �hand corner of cell E2 and atuofill the rows below.
When that�s been done, select the larger area and choose the find and replace function. Then replace �A� wi �=A� and that should do what you were wanting.
No doubt there�s an easier way but ma way seems to work.