activegrid - wdsl?
javascript grid 
   http://www.activewidgets.com/grid/

   http://numsum.com/

   http://www.blueshoes.org/en/javascript/spreadsheet/

   wikicalc


http://www.turboajax.com/turbodbadmin_demo/

dhtmlxGrid http://www.scbr.com/docs/products/dhtmlxGrid/

http://www.activewidgets.com/grid/

http://www.codethat.com/grid/

http://www.simple-groupware.de/cms/Spreadsheet/Home