Hi mohammedkhan
I have entered the data provided by you in range A1:A4.
In the range E1:E10 enter numbers 0,1,2,3,4,5,6,7,8,9.
In the range F1:F26 enter alphabets a,b,c....z.
Enter the formula in B1 = MIN(IFERROR(FIND($E$1:$E$10,A1),100000)) and press Ctrl+Shift+Enter.
In C1 =...