Hello Pepper Mint,
EmEditor currently shows embedded newlines as reversed ‘MJ’, and you can’t show these as shown in the Cell toolbar.
I am not sure about your second question regarding “what format”? Are you asking about Excel format you have to choose when you open the CSV file with Excel?
You can resize the columns by selecting the “Column Separators” button -> “Adjust Separator Positions (Whole Document)” in the CSV/Sort toolbar.
Thanks,