a) On the
Central Administration home page
b) Under
Application Management
c) Click
Manage service applications.
d) On the
Manage Service Applications page
e) Click New,
and then click Excel Services Application.
f) In the
Name section, type a name for the service application in the text box.
g) Select the
Create new application pool option and type a name for the application pool in
the text box.
h) Select the
Configurable option, and from the drop-down list, select the account that you
created to run the application pool.
i) Click OK