Document.SaveFormat Property (Word)
Published: July 16, 2012
Returns the file format of the specified document or file converter. Read-only Long.
The SaveFormat property will be a unique number that specifies an external file converter or a WdSaveFormat constant.
Use the value of the SaveFormat property for the FileFormat argument of the SaveAs2 method to save a document in a file format for which there isn't a corresponding WdSaveFormat constant.