Sum multiple values in Index/Match function - excel

Question

I am working on a distribution problem, analysing the volumes delivered to a set of stores (75 stores).
I have an Excel file as follows:
As you can see, each day does not contain the same stores, given that each store does not receive a delivery every day.
I want to get a new table that has the code of the store in the columns, and the information about volume and miles in the rows. Furthermore, I want to sum the values of the volumes given that they belong to the same store. In this example this would look like this:
As you can imagine, my spreadsheet is way bigger, having a total of 6500 rows and 800 columns. I was thinking about using the function combination of INDEX/MATCH, but I cannot see how to make it sum the multiple values for a given store in a given date.

Answer 1

While you need to extend this formula, you could use:
=SUMIF(INDEX($C:$F,MATCH($J2,$A:$A,0),),L$1,INDEX($C:$F,MATCH($J2,$A:$A,0)+MOD(ROW(),2)+1,))
if the table is build up like this:
From L2 you can simply drag down and to the left as needed ;)
EDIT
To also get the stores:
L1: {=MIN(IF(MOD(ROW($C$1:$F$6),3)=1,$C$1:$F$6))}
This is an array formula and must be entered without the {} but being confirmed with ctrl+shift+enter!
M1: =SUMPRODUCT(SMALL(IF(MOD(ROW($C$1:$F$6),3)=1,$C$1:$F$6),SUM((IF(MOD(ROW($C$1:$F$6),3)=1,$C$1:$F$6)<=L$1)*1)+1))
from M1 you can simply copy to the right.
And to get the dates (if non continuous or something like that)
J2: =MIN(A:A)
J3: =J2
J4: =SMALL(A:A,COUNTIF(A:A,"<="&J3)+1)
J5: =J4
then copy J4:J5 simply down :)

Answer 2

Dont put the stores in the columns, use VBA or similar to read the input files and normalize the data so that the output would be a table looking like
Store - Date - Volume - Miles
101 10/06/2016 520 120
102 11/06/2016 500 100
Then you can always lookup a store and date or pivot the data later.