cd C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommon\X86\Microsoft Shared\OFFICE16

This pulls the correct primary interop assembly from NuGet.org (official Microsoft package).

A common search query—"Microsoft Excel 16.0 Object Library Dll Download"—often leads to frustration. Here is the critical feature of this library that users must understand:

If it returns 16.0 , the library is installed and functional. If you get an error, repair Office.

If you need to reference this library for VBA or external development, it is typically located in your Office installation directory. Common file paths include: