need to export OD and its Sub-OU info in excel format

Hi,

I m using win2008R2 in my organization,we have multipli OU's in AD and inside that OU we have multiple sub-OU's, i want to export all the information of those OU's (for eg:- how many users and computers are there in each OU and sub-OU.)

is there any script or command that i can use to export the OU data in proper.XLS format .?

Regards,

Prashant