As far as I know, there’s no solution for this problem yet. Why don’t you let your client edit the data in a real Excel/CSV file and use a CSV import plugin. There are many of them available for free on .org.
Best WordPress Plugin for Custom Fields & Meta Boxes
As far as I know, there’s no solution for this problem yet. Why don’t you let your client edit the data in a real Excel/CSV file and use a CSV import plugin. There are many of them available for free on .org.