From the picture above. I stored my user details by separating it with this symbol " , "
If user want to update something, lets say the password which is in the second index. How can I make the value To Store go to the second index and update it there. What should I use, so that it will work.
Otherwise you store your list again - keep the values you want and change only password value, because in both cases - list or dictionary hole value in specific tag is replaced