ABC
1 ## Ltr Formula
2 1 A =LEFT(ADDRESS(1,A2,4),LEN(ADDRESS(1,A2,4))-1)
3 2 B =LEFT(ADDRESS(1,A3,4),LEN(ADDRESS(1,A3,4))-1)
4 3 C =LEFT(ADDRESS(1,A4,4),LEN(ADDRESS(1,A4,4))-1)
5 11 K =LEFT(ADDRESS(1,A5,4),LEN(ADDRESS(1,A5,4))-1)
6 12 L =LEFT(ADDRESS(1,A6,4),LEN(ADDRESS(1,A6,4))-1)
7 13 M =LEFT(ADDRESS(1,A7,4),LEN(ADDRESS(1,A7,4))-1)
8 23 W =LEFT(ADDRESS(1,A8,4),LEN(ADDRESS(1,A8,4))-1)
9 24 X =LEFT(ADDRESS(1,A9,4),LEN(ADDRESS(1,A9,4))-1)
10 25 Y =LEFT(ADDRESS(1,A10,4),LEN(ADDRESS(1,A10,4))-1)
11 26 Z =LEFT(ADDRESS(1,A11,4),LEN(ADDRESS(1,A11,4))-1)
12 27 AA =LEFT(ADDRESS(1,A12,4),LEN(ADDRESS(1,A12,4))-1)
13 49 AW =LEFT(ADDRESS(1,A13,4),LEN(ADDRESS(1,A13,4))-1)
14 50 AX =LEFT(ADDRESS(1,A14,4),LEN(ADDRESS(1,A14,4))-1)
15 51 AY =LEFT(ADDRESS(1,A15,4),LEN(ADDRESS(1,A15,4))-1)
16 52 AZ =LEFT(ADDRESS(1,A16,4),LEN(ADDRESS(1,A16,4))-1)
17 53 BA =LEFT(ADDRESS(1,A17,4),LEN(ADDRESS(1,A17,4))-1)
18 54 BB =LEFT(ADDRESS(1,A18,4),LEN(ADDRESS(1,A18,4))-1)
19 55 BC =LEFT(ADDRESS(1,A19,4),LEN(ADDRESS(1,A19,4))-1)
20 56 BD =LEFT(ADDRESS(1,A20,4),LEN(ADDRESS(1,A20,4))-1)
21 57 BE =LEFT(ADDRESS(1,A21,4),LEN(ADDRESS(1,A21,4))-1)
22 256 IV =LEFT(ADDRESS(1,A22,4),LEN(ADDRESS(1,A22,4))-1)