I have a very large CSV dataset (1.5GB) I have had to import into Excel as a Pivot Table Report. In order to save on space, the data provider uses codes for field names e.g. 'HE Provider' column is labelled 'F_XINSTID01', and they have supplied a seperate Excel worksheet with field ordering and field labelling with descriptions. How can I get the Pivot Table Fields to read as something like 'HE Provider' rather than 'F_XINSTID01' and so on? I know how to use VLOOKUP when I can access the raw data but with this being a Pivot Table Report I'm not quite sure what to do.