xls file showing the false behaviour
OpenAsTextError.xls (application/vnd.ms-excel), 6.00 KB, created by wvvelzen on 2012-11-29 15:26:23 UTC
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Creator: wvvelzen
Created: 2012-11-29 15:26:23 UTC
Size: 6.00 KB

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Attachments on bug 57689: 70796