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sometimes while importing a csv file you must have seen one extra column and named zero because in your csv file you have rows in the first column and that column has no header so when you import a csv file that column also get imported but since it has no column name so its name becomes a name zero ill show you the csv file so we have the csv file index and in this we have two columns h and salary and here you will notice that we also have this row numbers one two three four five six and this uh in this column where it is present it has no column name so when we will import this csv file which is index so its name is written here index we will get these two columns age and salary as well as this column and this column name will be unnamed 0 and we will see how we can drop this on name 0 while importing the csv file so lets go to the jupyter notebook now ill import pandas as pd ill make one variable df and then from pandas i will call read underscore csv and inside this i will pas