I have a problem with a table. I'm using 3 columns in the table. But only the first column is my "data" column which will be loaded from a csv file and can be modified by the user. The second clumn and the third column should be used for descriptions only (no user access). My problem now is after loading the data I do not know how can I modifiy certain cells in the 2nd and 3rd column by code, how can I lock it that nobody can adjust it and how can I export the first row only (only the data). Currently I have the situation if I export the data I get a list of values and 2 from 3 values are "null". I think this is because I have no data in column 2 and 3.
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