I need to display only the content of the word document in a visual force Page  and document will be in the contact record.

 i have the Custom Attachment button in contact details page  , when i click the that button the coresponding attachment content will show the Visual force page , I can retrieve the attachment via query and converted to string , but i cant assign body of the content in to visual force page,

any one help me for this???

can u refer any examples ?

Code:

public class AttachmentDownloadExtension
{
    public AttachmentDownloadExtension(ApexPages.StandardController controller) {

    }


private Blob fileBody{get; set;}
public String str{get; set;}
private final Contact contact;
public String getstr()
{      
return this.str;  
}      
public Blob getFileBody()  
{      
return this.fileBody;  
}
public void setFileBody(Blob fileBody) 
{      
this.fileBody = fileBody;      
}

private ID contactid = ApexPages.currentPage().getParameters().get('id');

    public string AttachmentDownloadExtension(ApexPages.StandardController controller)
     {
      Attachment[] attach = [Select body, bodyLength, ContentType, ParentId from Attachment where ParentId =: contactid ];   
      Blob b = attach[0].body;
      str = b.toString();
      return str;
}

}