Get certain values from complex table - excel

Question

I have a rather complicated data structure in Excel (Google Drive link). I would like to get certain values from this table:
I tried a combination of a row-column INDEX MATCH. However this did not work because I do not know how to locate the desired column.
Any suggestions how to transform this data structure?

Answer 1

Add two helper columns in M and N.
In M4 enter:
=MATCH(H4,A:A,0)
IN N4 enter:
=COUNTIF(A:A,H4)-1+M4
These will return the first and last row numbers for the Group.
Then in J4, array enter:
=INDEX(INDEX(INDEX($D:$D,$M4):INDEX($D:$D,$N4),MATCH(J$3,INDEX($D:$D,$M4):INDEX($D:$D,$N4),0)+1):INDEX($D:$D,$N4),MATCH(1,1/(INDEX(INDEX($B:$B,$M4):INDEX($B:$B,$N4),MATCH(J$3,INDEX($D:$D,$M4):INDEX($D:$D,$N4),0)+1):INDEX($B:$B,$N4)=$I4),0))
Remembering to confirm with Ctrl+Shift+Enter. Then fill across and down as needed.
There's probably a simpler version!

Answer 2

If you can add a helper column A you can do the following
A3: =E4, A4: =E4, A5: =E4, A6: =E4, A7: =E8...
Once you have the first four values you can drag it down for the frist group and then from group 2 drag those four formulas down to the end.
You data will look like this:
Then in Cell K4 you enter the following formula:
=SUMIFS($E$3:$E$26,
$A$3:$A$26, K$3,
$B$3:$B$26, $I4,
$C$3:$C$26, $J4)
Once you have this you can drag it down and right arbitrarily.
The only issue here is getting the Dates into the helper column, the approach above is only easy if all groups are of equal size but I assumed that given the sample data.

Answer 3

This solution does not required working (helper) cells, just a minor adjustment to your output table:
Enter the word Date in cell I3
Then enter this FormulaArray in cell J4 then copy till J7 then to range K4:L7
(Formulas Array are entered by pressing [Ctrl] + [Shift] + [Enter] simultaneously)
=INDEX($D$2:$D$26,
MATCH($H4&$I$3&J$3,$A$2:$A$26&$B$2:$B$26&$D$2:$D$26,0)
+MATCH($I4,OFFSET($B$2:$B$26,
+MATCH($H4&$I$3&J$3,$A$2:$A$26&$B$2:$B$26&$D$2:$D$26,0),0),0))