A family of Microsoft spreadsheet software with tools for analyzing, charting, and communicating data
This is easily achieved with Power Query. Unpivot the 6 column data table to three columns. One for Part, one for the Value and one for Month (based on a real date value). Load the flattened data directly into a Pivot Table and format the month labels to your liking.
The flattened data would look like this in PQ:
And the Pivot Table will come out like this:
Next month, dump the new data in the same Excel table and refresh the query.