I'm not sure if I understand your question. I hope I'm not over simplifying.

If you have a Text Box and you want the text within the box to wrap, select
the box and make it narrower by dragging in one of the sides. Otherwise, if
you dont want to change the size of the Text Box, place the cursor in the
text string where you want it to wrap (end the line) and hit enter.

"4407mark" wrote:

I'm creating a form in Excel with fields to be completed by the user. In
three sections, I need to insert a text box and have the entered text wrap to
the next line within the designated box. I have tried merging the cells
"under" the textbox and clicking on "wrap text" but it still does not want to
wrap.