Well, I think you may try to use some charts in Ms Excel to generate speedometer chart, e.g you may try to use and adjust doughnut chart and pie chart (one over other) accordingly to create the speedometer type of chart.
Well, I am afraid, you have you build your own logic. As there is no direct way to create Speedometer chart in Ms Excel and you have to always use some workaround to mix two or more custom charts accordinly. It would be better if you could create your desired chart in MS Excel (by mixing relative charts manually) and try then use Aspose.Cells APIs to perform the task.