When you look at the CSV file in Excel is all the data there. If so arrange it in the correct order to import into your new application.

Thank you. The names and addresses are all there. The information goes horizontally across cells in the normal excel way. I'm not sure what you mean by arranging it in the correct order to export/import. Thank you much.

When you import things the data fields have to match the form that you are trying to fill out. If the form you are importing to wants the name first followed by the email address then you need to have the imported data in that order. When you import a file into Thunderbird a dialog box opens that lets you move the data around to match the form. I do not know how AT&T works.