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hello everyone in this video i will tell you how can we add header to existing csv file so i am on my vs code and this is the csv file which i am having it is having three records name and you can say h now i want to add name as a header for this column and for this numeric one i want to add eight so how can we do that so first of all we will import pandas data frame and this is how we traditionally read our csv files so here we need to pass an additional parameter header and its value would be none because as of now there is no header in our csv file next thing is we need to go and save this back so we can say df dot to underscore csv and inside that we need to pass the file name which is the same file name because we want to overwrite and then we need to provide header information so that would be a list so first column i want name and second column i want to be labeled as h so this is done and index if you want you can add it otherwise you can also pass it false because there is no