Jan Svitok wrote: > > Try prefixing it with something. I've found at [1] that they refer to it > as > Excel.XlChartType.xlLine > > So try something similar. > > [1] > http://msdn2.microsoft.com/en-gb/library/microsoft.office.tools.excel.chart.linegroups(VS.80).aspx Hi, if I change this line excelchart.ChartType = ChartTypeVal; into excelchart.ChartType= excelchart.XlChartType.xlLine I get the following message: excel1.rb:37:in `method_missing': unknown property or method `XlChartType' (WIN32OLERuntimeError) HRESULT error code:0x80020006 Unknown name. from excel1.rb:37 Li -- Posted via http://www.ruby-forum.com/.