Hi,
Image must be a byte array, not a filename. Normally FlexCel will figure out which format the image is in, and add the correct one to the file.
You can see an example in the first of the report Demos: "Getting Started Reports". the code used in that demo is:
using (FileStream fs= new FileStream(Path.Combine(DataPath, "img.png"), FileMode.Open))
{
byte[] b= new byte[fs.Length];
fs.Read(b,0,b.Length);
reportStart.SetValue("Img", b);
}
and of course the image is named <#img> as you can see in the template.
Do you have any more information on the issues you are having?
Regards,
Adrian.