At some point you will need to export your contacts for your email address book. If you are using Horde, follow these simple instructions on how to do this. You will be able to then upload these contacts into other mail programs as well as Excel because of the .CSV format.
1) Navigate to and click on the Address Book icon…
2) Select the Import/Export icon. Here we can export our Horde contacts so that we can use them in another program such as Excel or Outlook. Let’s go ahead and Export the contacts now. Click Export.
3) Click OK.
4) That’s it! Our contacts have been exported and can now be used in other programs.