New line character appears as a square box
A multi-value field or a single value field with carriage returns exported to the corresponding word document which is placed inside a table produces lines that are not separated. Instead of a carriage return, a square box appears in its place.
This is a "known" problem with MS Word application. Apparently, it seems that when the field is placed within a table, MS Word cannot recognize the new line character.
The trick is to press ENTER after the field (this way, you will have the table with one row and two lines - first one will contain field bookmark and second one will be empty; you can set font to 1, so it would hardly be visible at all).