feeding docx into collection()

Hello --

https://www.saxonica.com/html/documentation/sourcedocs/collections.html

says

A URI is recognized as a ZIP or JAR file URI if the scheme name is "jar",
or if the file extension is "zip" or "jar".
Which means that I need to rename a docx archive to have a ".zip" suffix if
I want to open it with collection().  Which is not especially challenging
but which lacks elegance.

Is there a way to explain to collection() that this URI is a zip archive,
irrespective of suffix?

Thanks!
Graydon

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