I have two separate csv files that contain a list of [Account_name, Balance] for different time (2017 and 2018, respectfully).
However, the csv files themselves don't have the date mentioned anywhere.
How would I make so the data from the first file had "2017" date, and "2018" for the second?
How would I prevent data for the same account being overwritten?
So that I end up with something like this:
|some account||some balance||same account||some new balance|
Thanks in advance!