As bug example
ROUND error.ods (application/vnd.oasis.opendocument.spreadsheet), 10.72 KB, created by Po-Yen Huang on 2023-11-13 04:04:58 UTC
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Creator: Po-Yen Huang
Created: 2023-11-13 04:04:58 UTC
Size: 10.72 KB

Attachment is not viewable in your browser because its MIME type (application/vnd.oasis.opendocument.spreadsheet) is not one that your browser is able to display.

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Attachments on bug 158190: 190801