In the attached workbook, I want to show the sub-sectors that are falling under each of the industries in the worksheet. However the sub-sectors are all being mapped under Null. Ideally, we want to show the sub-sectors under each Industry as per the table shown in the Excel document "Table to show". So Communications (sub-sector) should come under Comms (Industry), C&G should come under "retail & consumer services". But in my current View in the workbook, all Industries have "Null" in the Sub-sector column. Is there a way to correct this view? Sorry I am new to Tableau and still struggling with some of these issues.