There is two bad news here.
1) . , - .
2) . . .
, Open , .doc, .docx. VBA, , ".doc". VBA :
Function StringEndsWith( _
ByVal strValue As String, _
CheckFor As String) As Boolean
Dim sCompare As String
Dim lLen As Long
lLen = Len(CheckFor)
If lLen > Len(strValue) Then Exit Function
sCompare = Right(strValue, lLen)
StringEndsWith = StrComp(sCompare, CheckFor, vbTextCompare) = 0
End Function
Sub ChangeTemplates()
Dim strDocPath As String
Dim strTemplateB As String
Dim strCurDoc As String
Dim docCurDoc As Document
' set document folder path and template strings
strDocPath = "C:\tmp\"
' get first doc - only time need to provide file spec
strCurDoc = Dir(strDocPath & "*.doc*")
' ready to loop (for as long as file found)
Do While strCurDoc <> ""
If (StringEndsWith(strCurDoc, ".doc") Or StringEndsWith(strCurDoc, ".docx")) Then
' open file
Set docCurDoc = Documents.Open(FileName:=strDocPath & strCurDoc)
' change the template back to Normal
docCurDoc.AttachedTemplate = ""
' save and close
docCurDoc.Close wdSaveChanges
End If
' get next file name
strCurDoc = Dir
Loop
MsgBox "Finished"
End Sub