import bug w/SchoolTool sample data spreadsheet

Traceback:

Traceback (most recent call last):
  Module zope.publisher.publish, line 133, in publish
    result = publication.callObject(request, obj)
  Module zope.app.publication.zopepublication, line 167, in callObject
    return mapply(ob, request.getPositionalArguments(), request)
  Module zope.publisher.publish, line 108, in mapply
    return debug_call(obj, args)
   - __traceback_info__: <security proxied zope.app.pagetemplate.simpleviewclass.SimpleViewClass from /usr/lib/python2.5/site-packages/schooltool/export/templates/import.pt instance at 0xd65408c>
  Module zope.publisher.publish, line 114, in debug_call
    return obj(*args)
  Module zope.app.pagetemplate.simpleviewclass, line 44, in __call__
    return self.index(*args, **kw)
  Module zope.app.pagetemplate.viewpagetemplatefile, line 83, in __call__
    return self.im_func(im_self, *args, **kw)
  Module zope.app.pagetemplate.viewpagetemplatefile, line 51, in __call__
    sourceAnnotations=getattr(debug_flags, 'sourceAnnotations', 0),
  Module zope.pagetemplate.pagetemplate, line 115, in pt_render
    strictinsert=0, sourceAnnotations=sourceAnnotations)()
  Module zope.tal.talinterpreter, line 271, in __call__
    self.interpret(self.program)
  Module zope.tal.talinterpreter, line 346, in interpret
    handlers[opcode](self, args)
  Module zope.tal.talinterpreter, line 586, in do_setLocal_tal
    self.engine.setLocal(name, self.engine.evaluateValue(expr))
  Module zope.tales.tales, line 696, in evaluate
    return expression(self)
   - /usr/lib/python2.5/site-packages/schooltool/export/templates/import.pt
   - Line 1, Column 0
   - Expression: <PathExpr standard:u'view/update'>
   - Names:
      {'args': (),
       'context': <schooltool.app.app.SchoolToolApplication object at 0xd5166ec>,
       'default': <object object at 0xb7d25618>,
       'loop': {},
       'nothing': None,
       'options': {},
       'repeat': {},
       'request': <zc.resourcelibrary.publication.Request instance URL=http://localhost:7090/@@import.html>,
       'template': <zope.app.pagetemplate.viewpagetemplatefile.ViewPageTemplateFile object at 0xc455eec>,
       'view': <zope.app.pagetemplate.simpleviewclass.SimpleViewClass from /usr/lib/python2.5/site-packages/schooltool/export/templates/import.pt object at 0xd65408c>,
       'views': <zope.app.pagetemplate.viewpagetemplatefile.ViewMapper object at 0xd6540ac>}
  Module zope.tales.expressions, line 217, in __call__
    return self._eval(econtext)
  Module zope.tales.expressions, line 211, in _eval
    return ob()
  Module schooltool.export.importer, line 722, in update
    imp.import_data(wb)
  Module schooltool.export.importer, line 108, in import_data
    return self.process()
  Module schooltool.export.importer, line 450, in process
    value = sh.cell_value(rowx=row, colx=n + 10)
  Module xlrd.sheet, line 253, in cell_value
    return self._cell_values[rowx][colx]
IndexError: list index out of range