Conditional Summation Of Like Entries In A Table

I have a table showing the quantity of products that were sold to stores within a particular week. The following data are shown in each column: Distribution centre (DC) ID, Item ID, Item description, Store ID, Day of delivery, Invoice Number, Quantity delivered - see example attached.

I want to sum up the quantities of identical items that were delivered to the same store from the same DC. In other words, the following conditions have to be met: (a) Distribution centre ID has to be identical, (b) Item ID has to be identical, (c) Store ID has to be identical. To give a specific example as per the attached file, instead of having 2 rows for 2 deliveries of 5 + 3 boxes of chocolate to store# 1, I want to have just one row showing that store# 1 had 8 boxes of chocolate delivered, a second row for that store would show that store #1 had 10 boxes of tea delivered to it. I would like the summed up quantity data point along with the Distribution centre ID, Item ID, Description, Store ID, Day of delivery, Invoice Number to be in a new tab, i.e. I want to reduce the table size and do not want the original rows to be in the new table.

Since my table goes all the way down to the last row 65536, I would need the formula/macro to be able to recognise identical DCs/items/stores and then sum up the quantities (there are about 1500 different item IDs). Can you think of a solution??