How to import csv file having multiple artists in a column?

I am trying to import tags from a csv file. The csv file already has comma separated values in artist column. Thus the artist values get added up to the Album values.
%_path%,%artist%,%album%, this is my import format.
The artist tag has multiple values separated by comma.

You would have edit the csv-file and enclose that part of the string that belongs to one field but has commas as part of the data in " or ' (try it)

Or replace the separator-comma with another unique character, e.g | so that the comma is no longer a field separator.