Stupid Win extensions caught me out - where's Linux when you need it -, I forgot to select All Files.
Got it open with - Right-click Open With, choose default program, untick Always open, search dir to find Wordpad, and open.
Will give it a hack.
EDIT
Yay, it worked.
EDIT EDIT
I asked the Inkscape guys about text here - http://www.inkscapeforum.com/viewtopic.php?f=16&t=31061