The problem is with PngFormatProvider only, as it is the only one using the zip.
You can use BmpFormatProvider to export the image to bmp using analogical code to the one in the sample project. You just have to replace PngFormatProvider with BmpFormatProvider and change the extension of the image file. I tested how bmp export with the image you have attached and the image was successfully saved.
When it comes to JPEG, our JpegFormatProvider supports only import, but you can implement the export yourself, as described in this blogpost. There is also an attached sample project illustrating the implementation of JPEG format provider that allows export using FJ Core. The only thing that you would need to do to get it working with 2012 Q1 is to add the following property to the CustomJpegFormatProvider class:
I hope this helps.
All the best,
the Telerik team
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