You can use this code to auto-match the header columns in your .csv file with the fields in your field. This is especially helpful when the header fields in your .csv file are different from the labels of your fields.

My php skills are beginner level at best, so there are probably a lot better ways to do this. I was trying to create a shortcode to add an hour to time and the following actually works.

I am amazed that it worked and happy that after all the examples you've given us, I can give something back.