In syncronising my contact data from my Plam to Outlook the e-mail adresses
ended up in a "business phone 3" field. I want to move them all (some 500
contacts) to the "e-mail" field.

As recomended here, I tried to export all the contact data into Excel to
make the appropriate changes and then import corrected data back in to
Outlook, however I cannot get the "business phone 3" field to export. When I
export the "business phone 3" field is not there. I have added it to a custom
view, but it still will not export.

"business phoine 3" seems to be a user defined field, as it only appears on
the "all fields" tab of the the contact card.

Thank you for your help.