Opening a word document

>From within my Excel macro, I want to open a specific word document and
paste part of my spreadsheet into a specific part of the word document.
Anybody know how?

Thanks,
RobH

Dim WordApp As Object

Set WordApp = CreateObject("Word.Application")

With WordApp
.Documents.Open "C:\Filename.doc"
.Visible = True
End With

WordApp.Quit

Set WordApp = Nothing