Introduced in build 9.1
DescriptionWrites a Chart to the specified stream as a specified image format.
streamThe output stream to write to. This stream must be open and writable. ExcelWriter will not close this stream; the calling program is responsible for closing the stream and releasing the resource.
ImageFormatThe file format ExcelWriter will save the chart as. Supported file types include GIF, JPEG, BMP, PNG, EMF, TIFF, and WMF
System.ExceptionIf there is a problem creating, opening, or writing to the file specified, or reading from the Chart object.