title: Microsoft office Interop Excel V.S. Microsoft Excel Object Library
body: <p>I'm using Visual Studio 2015 and trying to automate excel 365 from C#, I believe I'm suppose to add "Microsoft office interop excel" to the reference under the Framework/Assemblies, however, there was no option for me to select. I was told that I can also use "Microsoft Excel Object library" under COM. What is the difference between these two? and what do I have to do to install "Microsoft office interop excel"?</p>