SQL GRID text string

We put in an SQL Grid the output text-string of an query. The string can be rather long, longer than a full screen window.
I am looking for any method to break the string in parts, displaying each on a new line.
Inserting " + CHAR(13) + CHAR(10) + CHAR(09) + " does not do the job (every combination).

Preferrably I’d like a ‘box’ with width xx% of the window, and the text self-adjusting to that width, and claiming as much height as nessecairy …

Anyone any ideas/suggestions/…