How to replace data in an existing XML file?
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I have an XML file. It looks like in the attached pic.
As you can see, in action Name "m1" there are 2 cols: "fish_1" & "fish_2".
I also have a list with new col names: "moose_42" , "moose_7" , "moose_19"
I'd like to replace the existing list (2 col names) with the new list (3 col names). I know how to "dive" into action "m1" and replace attributes values. But because it's 3 new vs. 2 existing, I'd need to add one NEW node. How this can be done?
Also, what if in my new list there is only 1 name, then how can I DELETE the second node?