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All of the VTX files appear as Microsoft Visio documents, is that normal? 56KPK (talk) 20:50, 29 November 2020 (PST)

Yes. .vtx happens to be the same extension that Visio uses; that doesn't mean they're actually Visio documents, just that they happen to share the same file extension. Bytewave (talk) 21:27, 29 November 2020 (PST)