It´s simple:
1 - Open Outlook and choose the "Contacts" screen / view
2 - Organize contacts by (for example) "Phone List". Make sure that
the view you have is a column / row view, with colum / field names on
top (such as "Name", "Telephone", etc)- This type of view is similar
to excel, so it will be exported in a better format, each colum having
the values associated for a specific contact;
3 - If you want, you can add or remove columns before exporting (i.e,
make them invisible).Right click on top of the column field name you
do not wish to export, and choose "Remove This Column". Similarly, if
you want to display a column that is not visible, scroll to the right
of the window, until you reach the last column. After the last column,
there should be an empty space. Right click on that, and choose "Show
Fields...". Now, choose the category of the field you want to display
(from the left box), and click "Add" so that it passes to the box on
the right side. Then click Ok if all the fields have been added as
required by you.
Now, you will see all the additional fields, and are ready to perform
a decent export: select all contacts (CTRL + A) press the left mouse
button on top of one of them (which is the same as selecting all
contacts) and, without releasing the left mouse button, drag the
contacts into excel. Don´t forget that you obviously need an excel
file to drag those contacts into, and that file should have a blank
worksheet available. I recommend reducing the size of the Oulook and
Excel windows, place them side by side so that you can perform the
"export drag and drop" more easily.
Hope this helps!