LyX 2.0: spreadsheet

[Jannick Asmus]

Opening the lyx 2.0file (downloaded from 
http://wiki.lyx.org/Examples/SpreadsheetExternalInset) with LyX 2.0 beta 
1, LyX prompts the following error: "lyx file not readable". Shouldn't 
the file be readable - or is an upgrade to beta2 needed here? The latter 
idea comes to my mind since there is no item "Gnumericspreadsheet" in 
the drop down list in the external material menu.

Working on WinVista.
/J.