Export CRM Data to Excell using C#

Hi,

I need to export Crm Entity (lead,contact) recors to excell sheet  using C#.

I got the bellow link but it doesn't  work. 

http://suresh-kumar-patra.blogspot.in/2012/06/take-automatic-backup-for-record-in-ms.html

any other method or plugin code available . .

Grateful for any help!!