With SharePoint 2010, you can deploy Office Web Apps which helps to view / edit Office document (Microsoft Word, Excel, PowerPoint and OneNote ) over the web.
When you Install “Office Web Applications” on your SharePoint farms system will add the following service applications;
- Word Viewing Service Application
- Excel Calculation Service
- PowerPoint Service Application
Download Office Web Apps from the Microsoft Download Site. This download is available to Volume licensing customers or those with TechNet and MSDN subscriptions.
Enter Product Key
Click Continue… (Note that is RTM Version)
System will perform configuration task step 1 to 10
System will complete the process and successful
Click Start the Wizard… (Or) Click cancel and activate the Office Web Apps services individually when you need for my case i just click Start the Wizard and completed process.
Go to Site Setting > Site Collection Administration > and Click Site collection feature
Activate Office Web Apps…. and view/ / edit on browser.