Line breaks in a cell

What I am trying to do is export data from a program into excel. This will have 500 rows. Each cell has several lines of data in that one cell that are separated by a line break. I then need to save that excel in csv format and upload it back into the program. The problem I am having is once I upload this the line breaks are now gone. I know I can do alt enter at each line break but is there some way to do this in bulk with a formula or something.

You can always use the Char(10) or Char(13)

This will add line breaks.

Perhaps something like this: =G8&CHAR(10)&char(13)"hello"

Steve=True