How can I use Internal ID's to reference a valid value in a picklist field?

Using internalID's with the CloudExtend Excel for NetSuite

Some power users may prefer to use Internal ID's to reference valid values in a picklist field (Entity, Location, G/L Account, etc.). To use the internalID instead of the text value enter the internal ID and enclose it between 2 left and 2 right brackets, ie [[1234]]. When you push your data back to NetSuite the value will be set accordingly.