Hello, i have a rather complicated issue that I am trying to resolve.
I have over 200,000 lines of raw sales data in excel.
The data looks something like this:
Customer Id / Invoice # / Date / Inventory / Quantity / Value
1001 / inv1 / 1-1-18 / cheese / 10 / 45.50
1001 / inv1 / 1-1-18 / sauce...