The same test file as attached by Vdragon but in xls format
test.xls (application/vnd.ms-excel), 4.69 MB, created by Franklin Weng on 2017-08-12 13:19:22 UTC
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Creator: Franklin Weng
Created: 2017-08-12 13:19:22 UTC
Size: 4.69 MB

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Attachments on bug 108347: 134074 | 135449 | 135486