Thursday, January 2, 2014

Excel Rendering Extension: Unknown Image Format Imag/GIF - SSRS Excel Export

1. QA & Dev environments are same but I don't have access to deploy the reports to QA environment.


2. I'm able to export the same report in other formats without any issue but seeing only issue when exported with Excel.


Note:


The export to excel working fine in other cases except this particular scenario its failing. However In any case it simple displays the checkmark.Gif, Caution.gif images.


Any idea what I need to re-check to fix this defect?


Here is the expression being used to display the images.


=iif(Fields!out_of_tolerance.Value="True","caution18x18.gif","go18x18.gif")


In some cases we have reports with mixed results caution & checkmark which is being exported to excel without issue. But it fails for some report with the error


Excel Rendering Extension: Unknown Image Format Imag/GIF.




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