I could solve the problem 'List index out of bounds (-1)' by adding the following line:
NextGrid61.Serialize.Options := [soAddColumns, soSetHeaderCaptions];
but there are added the same amount of empty rows to the end of the grid as imported rows.
I also tried the example from Mountain (Test.zip) and added above line. But I still get the 'out of bounds' error. I used Delphi 10.2.



Find content
Not Telling
