Sample file which seems to reproduce the reported error
testMissingDims.xls (application/vnd.ms-excel), 4.00 KB, created by Josh Micich on 2008-12-15 22:37:04 UTC
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Creator: Josh Micich
Created: 2008-12-15 22:37:04 UTC
Size: 4.00 KB

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Attachments on bug 46206: 23029