how to Enable Client Integration

i got a problem,the problem is list cant use export to excel button in sharepoint 2010.

I found my account isn't have the promisson of Use Client Integration Features .

So, I think this is cause of the problem. through my investigation, i got the way to solve the problem.

 

solution:

　　Central Administration --> Manage web applications --> click your application

　　-->ribbon Authentication Providers --> Default --> Enable Client Intergation ?-->select yes