Edit files with SharePoint 2010 Client Object Model

Edit files with SharePoint 2010 Client Object Model

I'm new to SharePoint and using SharePoint Foundation server 2010 to save
files using client object model. The application will list the files in
the server using MVC4 UI. To retreive the files and folders I use
SharePoint 2010 client object model. I want to implement the Edit feature
for the word and excel documents which is already available when we access
SharePoint site directly through IE. Simply I just want to open the file
and save changes to the server when we save it or close the program. Is it
possible to do using client object model. I can open the file but not save
the changes to the server. I google it to find a solution but yet not
succeeded. If anybody knows how to do it please answer. Thanks in advance.
I just want to implement the following feature in my mvc4 application
using client object model.
http://social.msdn.microsoft.com/Forums/getfile/323127