To Disaply all your Active Directory Account and export the list to CSV you can use the built it Saved Queries option in Active Directory users and computers.
To list All Active Directory account Open Active Directory Users and Computers and go to Saved Queries right click and click on new query.
Give it a name select the domain and click on Define Query.
Select Custom Search in the Filed select User -> Logon name select condition as start with and value type *
Click Add and OK
Click OK again and go to the new Query in Active Directory.
To Display all the disabled Account in Active Directory, Create a new query but this time use Common Queries and Tick the Disabled Accounts.