Exchange 5.5 - Directory Export

It is very simple. From the Exchange Admin, select tools, then directory export. You can export the entire GAL or any container (like Recipients) in any site. This will give you a comma delimited file that is very easy to view and edit in Excel.A great tool to use before doing dir exports is the header.exe program found in the Ex resource kit. It allows you to create a template file, that contains all the fields you want to export from the directory.
An example of this the the mailboxes address is not export by default, but the header program will create a template file that contains any field and will export all the fields defined in the template file.
When exporting supply the template file as your export file and exchange does the rest.
I use this feature all the time to make mass changes in Exchange (ex: adding second email addresses, department name changes, etc.)