I regularly work with Excel data with newlines inside a single cell. This is why CSV is preferrable over tab-delimited.

"Terry","Joan","Sourced from $BAR list
04/03: Send Info
09/04: Info sent","7 - Voting for turnip"

vs

Terry	Joan	Sourced from $BAR list\
04/03: Send info\
09/04: Info sent	7 - Voting for turnip