The suffix "By Llexandro" indicates a repackaged, pre-activated, or customized installer. In the CAD community, "Llexandro" became a known alias for a distributor who specialized in:
: Creating and editing marks is more intuitive. When you move an associated object, its centerline or center mark updates automatically. AutoCAD 2017 English Win 64bit By LlexandroAutoCAD 2017
Windows 7 SP1, Windows 8.1 (with Update KB2919355), or Windows 10. Processor: 1 GHz or faster 64-bit (x64) processor. Windows 8.1 (with Update KB2919355)
Here’s a draft you could use for a forum, blog, or software description page. AutoCAD 2017 English Win 64bit By LlexandroAutoCAD 2017
: A 2017 research paper discussing the use of VBA for parametric drawing and system efficiency in AutoCAD Harvard University The Role of AutoCAD in Modern Infrastructure (ResearchGate)