Set the property of the reference to True in the Properties window. This compiles the necessary interfaces directly into your application, eliminating the need to deploy the DLL alongside your software. Method 2: Run an Office Installation Repair
How to Properly Fix Missing Library Errors (Without Downloading DLLs) Microsoft Excel 16.0 Object Library Dll Download -
The Microsoft Excel 16.0 Object Library is not a standalone executable or a single redistributable file. Instead, it is a provided by Microsoft Excel itself. Its purpose is to allow external applications (e.g., custom VBA scripts, Python with win32com , C#, VB.NET, or Access) to programmatically control Microsoft Excel. Set the property of the reference to True
Excel 2016, Excel 2019, Excel 2021, and Microsoft 365. Instead, it is a provided by Microsoft Excel itself
If you are developing a standalone application in C# or VB.NET and need this library, do not download a random DLL. Instead, use the official Microsoft.Office.Interop.Excel package via in Visual Studio. This ensures you have a secure, compatible version of the interop assemblies.
Method 4: Install the Primary Interop Assemblies (PIA) for Visual Studio