How do i change the column type in Numbers from number to string I have a column in numbers with zipcodes. The zipcodes have leading zeros, only the column drops the leading zeros.

I assume this is because the column thinks it's a number and not a string.

I tried right clicking on the column header to get a menu item to to change the type but couldn't find anything.

How can I change the column type from number to string?
Highlight the cells you want to change. 
Click the paintbrush icon to display the Formatting sidebar.
In the Data Format dropdown, select Text