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It's been "deprecated" for several years now. It still works as far as I know, and if you hae one of the many use cases that require it, there's still no sufficient "official" replacement yet as Chris already mentioned.
Edit: if you can describe your requirement a bit more, we can check whether Export DSE to Excel would work for you, and if not, we can add your reasons to the long list of feature-incomplete items in one of the existing Feature Request threads for it.