Content control elements are read even though unwanted

When I open the enclosed file, all content control elements appear in my Studio, however I was instructed not to translate these. I have tested all possible combinations of settings in the corresponding file type to no avail. Please advise, how to avoid reading such elements. Of course I know how to avoid translating them in editor, but the customer needs the translation in various languages and does not want to have these elements (there are many in the original source) to appear in the wordcount.

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