how do I prevent Excel from spilling text into adjacent columns?

[cp]

When I have columns that are skinnier than the text they contain, the text
spills into the adjacest column(s). How do I prevent this? It makes the
spreadsheet very messy looking when I squeeze the columns to get an overview
of the spreadsheet.

 

[Frank Kabel]

Hi
format these cells with word wrap ('format - Cells - alignment')

 

[Dave Peterson]

Put something in that adjacent cell.

I like to use:

=""

It looks empty, but when I select the cell, it's enough of a reminder to tell me
it's there for a reason.