How to open a Word document using VBA

You can use Word objects by referencing Word in Tools/References.

Then, simply instantiate a Word session in Access:

Sub Word()
Dim strFile As String
Dim objWord As New Word.Application

strFile = "C:\Documents\MyFile.doc"

' open a Word document
objWord.Documents.Open strFile
' make Word visible
objWord.Visible = True

' your code

' close the document
objWord.Documents(1).Close
' quit the Word application
objWord.Quit

' free up memory
Set objWord = Nothing
End Sub