Image import with path from XLS file 

Hello,

I am trying to import an image from a XLS file where I've placed as one field windows path to the image. 

It is telling me this error:  netsf.jasperreportS.engineJRException: Byte data not found at: Bilder.

"Bilder" is the name of the field with path to the images

I've tried to use path form file as absolute path and that works. 

Do you have any idea where the problem can be?