Sorry, the second formula should be

=IF(GET_LETTER="J",SUBSTITUTE(A1,GET_LETTER,"")+1& "A",SUBSTITUTE(A1,GET_LETT
ER,"")&CHAR(CODE(GET_LETTER)+1))

that is the one in A2 and copied down.

--
HTH

Bob Phillips

(remove nothere from email address if mailing direct)

"Quality101" wrote in message
...
I have a need to use excel to track large quantities of welds on
construction
sites. These welds are identified by component and are numerically
tracked
by row and sequence (i.e., 1A, 1B, 1C, 1D....1J; 2A, 2B, 2C, 2D....2J;
etc).
There could most likely be 180-225 rows like this in a single component.
So
far, I have been unable to use Excel's auto-fill capability to prevent
from
having to enter each column individually. Any suggestions?