Hi I have a problem calculating the sum of a CSV.
1.- I previously downloaded a .CSV
2.- I read the CSV and store
3.- I go through it and finally I want to write the sum of the ‘Importe’(amount) column.
The problem is that it tells me that “The ‘Importe’(amount) column does not belong to the DataTable table”.
I upload the examples, to see if someone tells me that I am doing wrong.