How to know content type in Word document?

Hi,
How to know the format/content type (wdFormatRTF, wdFormatDocument, etc.) of a document opened with Word?

Set moDoc = moWord.Documents.Open( _
FileName:=Me.path, _
ConfirmConversions:=False, _
ReadOnly:=False, _
AddToRecentFiles:=False, _
PasswordDocument:="", _
PasswordTemplate:="", _
Revert:=False, _
WritePasswordDocument:="", _
WritePasswordTemplate:="", _
Format:=wdOpenFormatAuto _
)