Filter for Word Document 2007-2019 - WordprocessingML v. 1

I receive file to be translated which uses the Word filter WordprocessingML v. 1 (I believe the agency use an old version of Office or old version of Trados).

My Word Trados filter is currently WordprocessingML v. 2. There is no way to add a new Word filter. How can I replace/add a new filter to be able to generate the Target files?

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