Make a list from a matrix

Hello Exceldemy team!
I need to build up a spreadsheet that display the quantity of the items that i have in my stock around 10 warehouses. For a brief example, lets say that I have lines with the warehouses and columns for the items. The matrix contains quantity of all of them.

So it would be a list spreadsheet like this:
Warehouse Water Coke D_Coke Bread Milk Macaroon Eggs Meat Truffles
A 0 0 1 0 1 0 5 1...

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