Hi suresh,
Are u trying to compare the cell reference in text format?
Say your data is as follows from A1 to B2:
A3 AA3
A4 A4
At C1 try this:
=IF(LEFT(A1,MIN(IFERROR(FIND({0,1,2,3,4,5,6,7,8,9},A1),""))-1)<>LEFT(B1,MIN(IFERROR(FIND({0,1,2,3,4,5,6,7,8,9},B1),""))-1),"Ok to...