A A B B B B B C C C
M S M N O R S M P S
1 1 4 5 6 7 10 11 12 13 14
2 15 18 19 20 21 24 25 26 27 28
3 29 32 33 34 35 38 39 40 41 42
4 43 46 47 48 49 52 53 54 55 56
5 57 60 61 62 63 66 67 68 69 70


Lets say i have data like above (where there is a main header -A,B, or
C) and then a sub header, (M/S/N/O/R/P). Then there is a date in the
first column (indicated here by the numbers 1-5 down the left side).

A B C
4
5
6


I then have a table like the one above. What I'm trying to do is get
the "S" value returned for each of the A, B, C main headers on the
given dates (4,5 and 6 in this example). What i've tried to do is
write a nested matching/vlookup function, but I have failed thus far.
IE, write a vlookup function that looks up the date. Have the column
it uses be a match looking for S in the sub header row where the
lookup array is returned using a match of the main header row and then
adding a few columns. Any ideas on how I can accomplish this?

And I hope I explained everything well enough for everyone to
understand =)