Hi Micke

If wdDoc is a reference to a Word Document, then
   wdDoc.Range.InsertBefore "My text here"
will insert "My text here" before any existing text.

For an example of how to cycle through all the documents in a folder, see
Find & ReplaceAll on a batch of documents in the same folder
http://www.word.mvps.org/FAQs/MacrosVBA/BatchFR.htm

If that's not enough, and you need more help, post back here.

Hope this helps.

Shauna Kelly.  Microsoft MVP.
http://www.shaunakelly.com/word