Please find the updated version attached. You can't use it yet.
What do you want to do with the dates? What are they for? They are only 4 while you have many other lines for your products.
Lénaïc RIÉDINGER, Global Community Engineer Tableau
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Tableau Format Alex Martino.xlsx 10.5 KB
I would review the following information on preparing data for use in Tableau. It gives an excellent overview of the common snags that people run into when working with non-standard data tables.
For more specific information on pivoting the table, I would review this specific section of the above help: http://onlinehelp.tableau.com/current/pro/desktop/en-us/help.htm#pivot.html
I have also taken the file you have attached above, connected to it in Tableau Desktop.
+ I selected the date columns > select the drop down arrow on one of the columns selected> Pivot data. Screenshot below demonstrates the process performed.
Hope this helps!
Pivoted Example.twbx 9.7 KB