excel contains an image,you need to export this to pdf and compare the exported image
big-image.xlsx (application/vnd.openxmlformats-officedocument.spreadsheetml.sheet), 67.73 KB, created by ankit on 2014-11-10 11:15:54 UTC
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Creator: ankit
Created: 2014-11-10 11:15:54 UTC
Size: 67.73 KB

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Attachments on issue 125845: 84180