How to add multiple data items to a picker view in Swift for Xcode 11.5

Question

How to add around 3500 items in the picker view or some easy drop down list kind of elements from the data provided in the csv file and also map them with individual values corresponding to that data. Any automation or easy technique to do so in Xcode? eg for data item in csv format

item 1     item 2 (value to be mapped in picker view 
                    along with displaying in the view view)

----------
abc        1
----------
def        2